[Perf] Linux/arm64: 53 Regressions on 4/12/2023 2:59:13 PM

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Tests.Perf_String*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Tests.Perf_String* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Tests.Perf_String*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Tests.Perf_String* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Tests.Perf_String.Replace_Char(text: "This is a very nice sentence", oldChar: 'z', newChar: 'y') ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 64.66883703865489 > 32.22459561218911. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -509.130557637134 (T) = (0 -64.45974050071393) / Math.Sqrt((0.0012935960529717996 / (19)) + (0.025997931707170192 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -1.1007795862140388 = (30.68372375841738 - 64.45974050071393) / 30.68372375841738 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Tests.Perf_String.PadLeft(n: 18) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 72.76663161667196 > 45.78562700630902. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -13.69617196234474 (T) = (0 -75.16970416105676) / Math.Sqrt((0.22294764758412505 / (19)) + (26.76651745915449 / (5))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (5) - 2, .025) and -0.7301919195944852 = (43.44587632721964 - 75.16970416105676) / 43.44587632721964 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.Tests.Perf_String.PadLeft(n: 2142) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 2.5303080590238363 > 1.6703151559197924. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -79.38654835419402 (T) = (0 -2506.15128219352) / Math.Sqrt((91.68484579698828 / (19)) + (766.0911098931733 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.5739011726254066 = (1592.3180729403978 - 2506.15128219352) / 1592.3180729403978 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Tests.Perf_String.ToLowerInvariant(s: "This is a much longer piece of text that might benefit more from vectorization.") ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 639.0373462746236 > 523.1167030405409. IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -11.815794465010875 (T) = (0 -656.9210439346721) / Math.Sqrt((12.835241882547216 / (19)) + (1081.8727703560298 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.3192213366618089 = (497.96120308132805 - 656.9210439346721) / 497.96120308132805 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Tests.Perf_String.ToLower(s: "This is a much longer piece of text that might benefit more from vectorization.") ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 666.3348839987833 > 549.9918173080408. IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -77.62908521129236 (T) = (0 -667.6023783604534) / Math.Sqrt((19.790484096207727 / (19)) + (11.489109414966963 / (5))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (5) - 2, .025) and -0.26982832363485926 = (525.7422329732372 - 667.6023783604534) / 525.7422329732372 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Numerics.Tests.Perf_Matrix3x2

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
[EqualsBenchmark - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Numerics.Tests.Perf_Matrix3x2.EqualsBenchmark.html>)	89.00 ns	171.80 ns	1.93	0.12	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

graph graph graph graph graph graph graph Test Report

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Numerics.Tests.Perf_Matrix3x2*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Numerics.Tests.Perf_Matrix3x2* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Numerics.Tests.Perf_Matrix3x2*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Numerics.Tests.Perf_Matrix3x2* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Numerics.Tests.Perf_Matrix3x2.EqualsBenchmark ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 171.8023639665733 > 94.48447304135193. IsChangePoint: Marked as a change because one of 1/6/2023 8:18:17 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -115.95635144847658 (T) = (0 -172.94676098941684) / Math.Sqrt((3.306464942191779 / (19)) + (2.0588053788284624 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.9311102014615918 = (89.55820380344908 - 172.94676098941684) / 89.55820380344908 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Memory.Span<Char>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).Reverse(Size%3a%2033).html>)	36.78 ns	336.31 ns	9.15	0.02	True
[IndexOfAnyFiveValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).IndexOfAnyFiveValues(Size%3a%2033).html>)	69.26 ns	201.77 ns	2.91	0.02	True
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).Reverse(Size%3a%20512).html>)	442.21 ns	5.10 μs	11.54	0.01	True
[LastIndexOfValue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).LastIndexOfValue(Size%3a%2033).html>)	23.41 ns	68.63 ns	2.93	0.08	True
[IndexOfAnyFourValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).IndexOfAnyFourValues(Size%3a%2033).html>)	57.64 ns	175.83 ns	3.05	0.01	True
[LastIndexOfValue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).LastIndexOfValue(Size%3a%20512).html>)	259.03 ns	432.03 ns	1.67	0.01	True
[SequenceCompareToDifferent - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).SequenceCompareToDifferent(Size%3a%20512).html>)	28.05 ns	48.49 ns	1.73	0.04	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

graph graph graph graph graph graph graph graph graph Test Report

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Memory.Span<Char>*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Memory.Span<Char>* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Memory.Span<Char>*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Memory.Span<Char>* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Memory.Span<Char>.Reverse(Size: 33) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 336.3131996048279 > 37.90837435355754. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -275.1197916396798 (T) = (0 -336.3647581523075) / Math.Sqrt((0.09765337242424707 / (18)) + (7.109699297148734 / (6))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (6) - 2, .025) and -8.292561686454473 = (36.197204764604116 - 336.3647581523075) / 36.197204764604116 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Memory.Span<Char>.IndexOfAnyFiveValues(Size: 33) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 201.76846781563734 > 70.42484419906711. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -263.1541007619756 (T) = (0 -200.39742469505543) / Math.Sqrt((0.4295910568886081 / (19)) + (1.4056680935001222 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -1.9901107997602991 = (67.02006651764215 - 200.39742469505543) / 67.02006651764215 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Memory.Span<Char>.Reverse(Size: 512) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 5.103239300638289 > 464.1322023052984. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -265.88893942129397 (T) = (0 -5070.290610327166) / Math.Sqrt((0.10412372584409609 / (19)) + (1514.9713425076088 / (5))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (5) - 2, .025) and -10.471462952146336 = (441.991630141516 - 5070.290610327166) / 441.991630141516 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Memory.Span<Char>.LastIndexOfValue(Size: 33) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 68.62873844185317 > 24.57071372177126. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -354.48911259961335 (T) = (0 -68.2975063256678) / Math.Sqrt((0.12478735324717632 / (19)) + (0.05650058336393321 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -1.908816364406749 = (23.47948366950178 - 68.2975063256678) / 23.47948366950178 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Memory.Span<Char>.IndexOfAnyFourValues(Size: 33) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 175.8294268563433 > 60.57292813506047. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -209.6592106806669 (T) = (0 -176.92875544065876) / Math.Sqrt((0.08050296885857378 / (18)) + (1.9125638922824044 / (6))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (6) - 2, .025) and -2.0647641830885024 = (57.729973619816846 - 176.92875544065876) / 57.729973619816846 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Memory.Span<Char>.LastIndexOfValue(Size: 512) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 432.0340453548025 > 270.1415862135933. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -71.68717902155618 (T) = (0 -435.22534478532026) / Math.Sqrt((7.961633474836741 / (19)) + (34.33498609041353 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.6897402949229844 = (257.56937092226775 - 435.22534478532026) / 257.56937092226775 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Memory.Span<Char>.SequenceCompareToDifferent(Size: 512) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 48.494686368679325 > 29.284770500555965. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -166.31798732814397 (T) = (0 -48.45439929732094) / Math.Sqrt((0.18022143142999195 / (19)) + (0.03331275366061744 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.7268590430896861 = (28.059267194516707 - 48.45439929732094) / 28.059267194516707 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Common

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
[MatchesWords - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWords(Options%3a%20IgnoreCase%2c%20Compiled).html>)	20.38 μs	38.33 μs	1.88	0.01	True
[ReplaceWords - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Text.RegularExpressions.Tests.Perf_Regex_Common.ReplaceWords(Options%3a%20IgnoreCase%2c%20Compiled).html>)	22.53 μs	40.49 μs	1.80	0.01	False
[OneNodeBacktracking - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Text.RegularExpressions.Tests.Perf_Regex_Common.OneNodeBacktracking(Options%3a%20Compiled).html>)	346.00 ns	768.40 ns	2.22	0.02	True
[OneNodeBacktracking - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Text.RegularExpressions.Tests.Perf_Regex_Common.OneNodeBacktracking(Options%3a%20IgnoreCase%2c%20Compiled).html>)	426.65 ns	1.07 μs	2.52	0.02	True
[MatchesWords - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWords(Options%3a%20None).html>)	170.50 μs	230.53 μs	1.35	0.02	False
[MatchesWords - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWords(Options%3a%20Compiled).html>)	14.88 μs	27.94 μs	1.88	0.02	True
[MatchesWord - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWord(Options%3a%20Compiled).html>)	10.00 μs	12.37 μs	1.24	0.01	False
[MatchesWord - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWord(Options%3a%20IgnoreCase%2c%20Compiled).html>)	10.16 μs	20.65 μs	2.03	0.01	True
[MatchWord - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchWord(Options%3a%20None).html>)	4.84 μs	6.49 μs	1.34	0.01	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

graph graph graph graph graph Test Report

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Common*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Text.RegularExpressions.Tests.Perf_Regex_Common* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Common*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Text.RegularExpressions.Tests.Perf_Regex_Common* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWords(Options: IgnoreCase, Compiled) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 38.32826521123693 > 21.45401560205403. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -380.88898653163665 (T) = (0 -38417.42416093007) / Math.Sqrt((8050.125558544761 / (19)) + (10871.766930755139 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.8824714718723359 = (20407.971507116385 - 38417.42416093007) / 20407.971507116385 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Text.RegularExpressions.Tests.Perf_Regex_Common.ReplaceWords(Options: IgnoreCase, Compiled) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 40.48804135520487 > 23.64737533743281. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -291.1822521523868 (T) = (0 -40576.030202282425) / Math.Sqrt((3284.544848643051 / (19)) + (22142.769382687715 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.8051931032476223 = (22477.390440548632 - 40576.030202282425) / 22477.390440548632 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.Text.RegularExpressions.Tests.Perf_Regex_Common.OneNodeBacktracking(Options: Compiled) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 768.4015140196226 > 357.9045717079674. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -87.0205570312756 (T) = (0 -778.0737759554304) / Math.Sqrt((9.1393402452751 / (18)) + (148.32623186082103 / (6))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (6) - 2, .025) and -1.2818438579674767 = (340.9846704622856 - 778.0737759554304) / 340.9846704622856 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Text.RegularExpressions.Tests.Perf_Regex_Common.OneNodeBacktracking(Options: IgnoreCase, Compiled) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 1.0735159616353067 > 451.88553405411096. IsChangePoint: Marked as a change because one of 3/28/2023 2:42:21 AM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -214.53776500987072 (T) = (0 -1073.6089463172689) / Math.Sqrt((30.354542298674758 / (19)) + (36.874591121136326 / (5))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (5) - 2, .025) and -1.4910946758430184 = (430.9787808261225 - 1073.6089463172689) / 430.9787808261225 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWords(Options: None) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 230.52823700980392 > 179.2246683542799. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -150.32415208911092 (T) = (0 -231046.6961750566) / Math.Sqrt((130438.16403882884 / (19)) + (922175.7312968622 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.35263983552023503 = (170811.68993237166 - 231046.6961750566) / 170811.68993237166 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWords(Options: Compiled) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 27.944831704781702 > 15.62908741789776. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -139.6940100364424 (T) = (0 -27932.28926281849) / Math.Sqrt((42098.396691412556 / (19)) + (38340.53634338025 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.8654811131529225 = (14973.236161908408 - 27932.28926281849) / 14973.236161908408 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWord(Options: Compiled) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 12.37146025362319 > 10.49483144819993. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -103.00677638684007 (T) = (0 -12330.78605393497) / Math.Sqrt((6613.955984260808 / (19)) + (946.8884386396594 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.23136769518673217 = (10013.894389250689 - 12330.78605393497) / 10013.894389250689 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWord(Options: IgnoreCase, Compiled) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 20.650508934878587 > 10.636229888676763. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -213.69759332534687 (T) = (0 -20723.457272878055) / Math.Sqrt((4895.559276414834 / (19)) + (13129.555114702249 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -1.0407595298660517 = (10154.776674858047 - 20723.457272878055) / 10154.776674858047 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchWord(Options: None) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 6.485892142902854 > 5.090691001924743. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -140.74984287015226 (T) = (0 -6535.298739252526) / Math.Sqrt((122.38325183700314 / (19)) + (827.2620438133632 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.3490320848575135 = (4844.435364146874 - 6535.298739252526) / 4844.435364146874 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Memory.Span<Byte>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
[IndexOfAnyThreeValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Byte).IndexOfAnyThreeValues(Size%3a%2033).html>)	39.23 ns	175.04 ns	4.46	0.09	True
[IndexOfAnyTwoValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Byte).IndexOfAnyTwoValues(Size%3a%2033).html>)	27.01 ns	132.34 ns	4.90	0.12	True
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Byte).Reverse(Size%3a%20512).html>)	936.23 ns	3.11 μs	3.32	0.01	False
[IndexOfAnyFourValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Byte).IndexOfAnyFourValues(Size%3a%2033).html>)	51.67 ns	196.38 ns	3.80	0.02	False
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Byte).Reverse(Size%3a%2033).html>)	72.91 ns	213.62 ns	2.93	0.03	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Memory.Span<Byte>*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Memory.Span<Byte>* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Memory.Span<Byte>*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Memory.Span<Byte>* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Memory.Span<Byte>.IndexOfAnyThreeValues(Size: 33) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 175.0405173403994 > 40.95531642805905. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -189.4884433742129 (T) = (0 -175.4795207673125) / Math.Sqrt((0.702977398291541 / (19)) + (2.876743617474426 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -3.4646868915450084 = (39.30388065949854 - 175.4795207673125) / 39.30388065949854 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Memory.Span<Byte>.IndexOfAnyTwoValues(Size: 33) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 132.33842215372775 > 28.37130680266411. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -382.50993507907424 (T) = (0 -132.7318416733468) / Math.Sqrt((0.05270767339052378 / (18)) + (0.4390364995996757 / (6))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (6) - 2, .025) and -3.8778537042055525 = (27.211115732911182 - 132.7318416733468) / 27.211115732911182 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Memory.Span<Byte>.Reverse(Size: 512) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 3.109321568236233 > 979.1872325087658. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -898.0256957804678 (T) = (0 -3115.005548474013) / Math.Sqrt((4.309156271000568 / (19)) + (34.058754145915486 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -2.338316302385766 = (933.1067718921178 - 3115.005548474013) / 933.1067718921178 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.Memory.Span<Byte>.IndexOfAnyFourValues(Size: 33) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 196.3791620152295 > 54.41457781821921. IsChangePoint: Marked as a change because one of 12/17/2022 10:44:50 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -188.5816075586725 (T) = (0 -199.29577162843785) / Math.Sqrt((0.17597542447493325 / (19)) + (3.604406646054984 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -2.831927603295153 = (52.00927372872581 - 199.29577162843785) / 52.00927372872581 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.Memory.Span<Byte>.Reverse(Size: 33) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 213.61917699067448 > 76.82730744680642. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -513.4483387067918 (T) = (0 -213.5088413359525) / Math.Sqrt((0.04435350042212781 / (19)) + (0.4343124573289673 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -1.9184567632774494 = (73.158130701988 - 213.5088413359525) / 73.158130701988 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Tests.Perf_Array

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Array.Reverse.html>)	225.29 ns	3.06 μs	13.57	0.01	True
[IndexOfChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Array.IndexOfChar.html>)	72.06 ns	125.59 ns	1.74	0.01	True

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

graph graph graph graph Test Report

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Tests.Perf_Array*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Tests.Perf_Array* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Tests.Perf_Array*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Tests.Perf_Array* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Tests.Perf_Array.Reverse ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 3.057970049116812 > 236.6749635048836. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -484.4730466718835 (T) = (0 -3072.632586882961) / Math.Sqrt((0.24258445845315318 / (19)) + (207.13680711571706 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -12.623977762746481 = (225.53123914256474 - 3072.632586882961) / 225.53123914256474 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Tests.Perf_Array.IndexOfChar ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 125.58502085122039 > 76.02298066448978. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -188.74918195232883 (T) = (0 -124.96284440631065) / Math.Sqrt((0.26241979110877706 / (19)) + (0.3897134516420692 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.7358218633481816 = (71.9905924939055 - 124.96284440631065) / 71.9905924939055 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Tests.Perf_Guid

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
[EqualsOperator - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Guid.EqualsOperator.html>)	4.15 ns	13.17 ns	3.17	0.22	False
[EqualsNotSame - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Guid.EqualsNotSame.html>)	1.17 ns	11.69 ns	9.96	0.66	False
[EqualsSame - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Guid.EqualsSame.html>)	2.05 ns	12.01 ns	5.87	0.36	False
[NotEqualsOperator - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Guid.NotEqualsOperator.html>)	3.73 ns	13.46 ns	3.61	0.22	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

graph graph graph graph graph graph Test Report

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Tests.Perf_Guid*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Tests.Perf_Guid* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Tests.Perf_Guid*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Tests.Perf_Guid* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Tests.Perf_Guid.EqualsOperator ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 13.174468780094122 > 3.791397661162461. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 3/21/2023 2:53:21 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -40.58947276001959 (T) = (0 -13.637234323573344) / Math.Sqrt((0.044499739476520944 / (19)) + (0.3465790162591552 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -2.6995701478241854 = (3.6861672515099517 - 13.637234323573344) / 3.6861672515099517 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.Tests.Perf_Guid.EqualsNotSame ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 11.688882174004583 > 0.7887247438704027. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 3/21/2023 3:33:39 AM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -71.08707766053935 (T) = (0 -11.979152543636339) / Math.Sqrt((0.3126098418509169 / (19)) + (0.039402119786611886 / (5))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (5) - 2, .025) and -12.457887793945659 = (0.8901212974167787 - 11.979152543636339) / 0.8901212974167787 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.Tests.Perf_Guid.EqualsSame ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 12.011084295823332 > 2.4287442631426965. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 3/21/2023 3:33:39 AM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -151.18754008737764 (T) = (0 -12.005295450011308) / Math.Sqrt((0.02585921062885637 / (19)) + (0.016814110914464157 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -4.335564781249331 = (2.250051483247149 - 12.005295450011308) / 2.250051483247149 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.Tests.Perf_Guid.NotEqualsOperator ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 13.458820603949164 > 3.894960622343815. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 3/21/2023 2:53:21 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -96.14201218280104 (T) = (0 -13.743411468199733) / Math.Sqrt((0.01960846479081194 / (19)) + (0.05843228674566542 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -2.6497416277772023 = (3.7655847645768463 - 13.743411468199733) / 3.7655847645768463 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Tests.Perf_Uri

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
[Ctor - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Uri.Ctor(input%3a%20%22https%3a%2f%2fCONTOSO.com%22).html>)	425.56 ns	584.59 ns	1.37	0.00	True
[CtorIdnHostPathAndQuery - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Uri.CtorIdnHostPathAndQuery(input%3a%20%22http%3a%2f%2fxn--hst-sna.with.xn--nicode-2ya%2fpath%2fwith%3fkey%3dvalue%23fragment%22).html>)	2.05 μs	2.42 μs	1.18	0.00	True
[CombineAbsoluteRelative - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Uri.CombineAbsoluteRelative(input%3a%20%22%2fnew%2fpath%22).html>)	715.99 ns	857.62 ns	1.20	0.01	True
[Ctor - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Uri.Ctor(input%3a%20%22http%3a%2f%2fh%c3%b6st.with.%c3%bcnicode%22).html>)	1.74 μs	2.16 μs	1.24	0.05	True
[Ctor - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Uri.Ctor(input%3a%20%22https%3a%2f%2fa.much.longer.domain.name%22).html>)	777.33 ns	1.34 μs	1.72	0.01	True
[Ctor - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Uri.Ctor(input%3a%20%22http%3a%2f%2fxn--hst-sna.with.xn--nicode-2ya%22).html>)	780.10 ns	1.18 μs	1.52	0.01	True

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Tests.Perf_Uri*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Tests.Perf_Uri* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Tests.Perf_Uri*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Tests.Perf_Uri* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Tests.Perf_Uri.Ctor(input: "https://CONTOSO.com") ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 584.5879522110192 > 446.7681096170157. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -76.16297428492183 (T) = (0 -586.8619907510405) / Math.Sqrt((22.737334517291334 / (19)) + (18.85099625535159 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.3704652417610406 = (428.2209959567642 - 586.8619907510405) / 428.2209959567642 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Tests.Perf_Uri.CtorIdnHostPathAndQuery(input: "http://xn--hst-sna.with.xn--nicode-2ya/path/with?key=value#fragment") ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 2.4247929895622375 > 2.1577553522102146. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -58.924699880847776 (T) = (0 -2435.6109524643525) / Math.Sqrt((94.34493423624905 / (19)) + (222.25384749859668 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.18596258615018385 = (2053.6996536886704 - 2435.6109524643525) / 2053.6996536886704 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Tests.Perf_Uri.CombineAbsoluteRelative(input: "/new/path") ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 857.6215774801807 > 743.4722071983094. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -63.99105592068313 (T) = (0 -859.6273632955108) / Math.Sqrt((59.19038258231108 / (19)) + (16.291347414607774 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.2191364082846142 = (705.1117146973319 - 859.6273632955108) / 705.1117146973319 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Tests.Perf_Uri.Ctor(input: "http://höst.with.ünicode") ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 2.163717413581958 > 1.787184041650934. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -55.33525094163439 (T) = (0 -2158.9041080056245) / Math.Sqrt((1077.8993517789697 / (19)) + (57.516906340371776 / (5))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (5) - 2, .025) and -0.2685926190779062 = (1701.8103964492977 - 2158.9041080056245) / 1701.8103964492977 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Tests.Perf_Uri.Ctor(input: "https://a.much.longer.domain.name") ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 1.3399828440670174 > 818.8946423959652. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -189.42158749398925 (T) = (0 -1351.2215630649305) / Math.Sqrt((6.664402754677017 / (18)) + (52.23017726164907 / (6))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (6) - 2, .025) and -0.7310363402031937 = (780.5853243417873 - 1351.2215630649305) / 780.5853243417873 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Tests.Perf_Uri.Ctor(input: "http://xn--hst-sna.with.xn--nicode-2ya") ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 1.181918919336919 > 818.7752896894737. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -247.1352790415828 (T) = (0 -1178.5661262726685) / Math.Sqrt((19.373395222537393 / (19)) + (9.373015783447283 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.5081438618066191 = (781.4679727309658 - 1178.5661262726685) / 781.4679727309658 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.IO.Tests.StreamReaderReadLineTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
[ReadLine - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.IO.Tests.StreamReaderReadLineTests.ReadLine(LineLengthRange%3a%20%5b%20%20%200%2c%20%20%20%200%5d).html>)	1.06 ms	2.26 ms	2.13	0.02	False
[ReadLine - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.IO.Tests.StreamReaderReadLineTests.ReadLine(LineLengthRange%3a%20%5b%20%20%201%2c%20%20%20%201%5d).html>)	712.56 μs	1.31 ms	1.83	0.03	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.IO.Tests.StreamReaderReadLineTests*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.IO.Tests.StreamReaderReadLineTests* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.IO.Tests.StreamReaderReadLineTests*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.IO.Tests.StreamReaderReadLineTests* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.IO.Tests.StreamReaderReadLineTests.ReadLine(LineLengthRange: [ 0, 0]) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 2.261149563690476 > 1.1116364790416664. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -125.7683351984146 (T) = (0 -2265547.070658905) / Math.Sqrt((26396742.20858345 / (19)) + (545220404.9506629 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -1.1423201446273141 = (1057520.3133577534 - 2265547.070658905) / 1057520.3133577534 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.IO.Tests.StreamReaderReadLineTests.ReadLine(LineLengthRange: [ 1, 1]) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 1.3061294163194446 > 750.5429330397725. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -57.27753816134686 (T) = (0 -1311892.5737182668) / Math.Sqrt((45225011.07291918 / (19)) + (637461159.7293394 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.8349934356560842 = (714930.3906088428 - 1311892.5737182668) / 714930.3906088428 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Tests.Perf_Enum

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
[GetName_Generic_Flags - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Enum.GetName_Generic_Flags.html>)	124.24 ns	158.56 ns	1.28	0.48	False
[IsDefined_Generic_Flags - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Tests.Perf_Enum.IsDefined_Generic_Flags.html>)	119.87 ns	142.88 ns	1.19	0.41	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

graph graph graph Test Report

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Tests.Perf_Enum*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Tests.Perf_Enum* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Tests.Perf_Enum*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Tests.Perf_Enum* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Tests.Perf_Enum.GetName_Generic_Flags ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 158.55756412142418 > 126.85118448004177. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -17.4850830182848 (T) = (0 -153.8836059274557) / Math.Sqrt((19.2988480538539 / (19)) + (18.47926079248568 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.298617862840125 = (118.49798954013046 - 153.8836059274557) / 118.49798954013046 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.Tests.Perf_Enum.IsDefined_Generic_Flags ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 142.88246518409736 > 120.68949047726272. IsChangePoint: Marked as a change because one of 3/25/2023 2:21:39 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -18.1281004222085 (T) = (0 -145.8003333360916) / Math.Sqrt((16.177142599562874 / (18)) + (11.668271698630779 / (6))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (6) - 2, .025) and -0.26527853934134393 = (115.23180770298192 - 145.8003333360916) / 115.23180770298192 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Globalization.Tests.StringSearch

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
[IndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options%3a%20(en-US%2c%20Ordinal%2c%20False)).html>)	290.09 ns	641.60 ns	2.21	0.02	True
[IsPrefix_DifferentFirstChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options%3a%20(en-US%2c%20OrdinalIgnoreCase%2c%20False)).html>)	38.92 ns	148.74 ns	3.82	0.07	True
[IsSuffix_DifferentLastChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options%3a%20(en-US%2c%20OrdinalIgnoreCase%2c%20False)).html>)	999.63 ns	3.41 μs	3.41	0.01	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Globalization.Tests.StringSearch*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Globalization.Tests.StringSearch* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Globalization.Tests.StringSearch*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Globalization.Tests.StringSearch* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, Ordinal, False)) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 641.6039633976555 > 305.89670661650814. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -461.12708487951977 (T) = (0 -640.0555489135785) / Math.Sqrt((0.5959344140812542 / (19)) + (3.2482979194399064 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -1.1989440573681542 = (291.0740483683066 - 640.0555489135785) / 291.0740483683066 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options: (en-US, OrdinalIgnoreCase, False)) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 148.73682818646537 > 39.82995234743812. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -137.67047701506735 (T) = (0 -148.39549328848196) / Math.Sqrt((0.9656445049501534 / (19)) + (3.5885650023265088 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -2.9577975449632 = (37.494462918482036 - 148.39549328848196) / 37.494462918482036 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` #### System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (en-US, OrdinalIgnoreCase, False)) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 3.409237812796381 > 1049.678668482085. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -286.12454792233706 (T) = (0 -3419.765514636934) / Math.Sqrt((1.4425564422432977 / (19)) + (357.2132418259132 / (5))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (5) - 2, .025) and -2.4195988936179043 = (1000.048725310837 - 3419.765514636934) / 1000.048725310837 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.IO.Tests.Perf_StreamWriter

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
[WriteFormat - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.IO.Tests.Perf_StreamWriter.WriteFormat.html>)	328.01 ns	450.12 ns	1.37	0.03	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.IO.Tests.Perf_StreamWriter*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.IO.Tests.Perf_StreamWriter* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.IO.Tests.Perf_StreamWriter*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.IO.Tests.Perf_StreamWriter* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.IO.Tests.Perf_StreamWriter.WriteFormat ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 450.11833588813886 > 343.9516692209013. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 2/12/2023 11:53:55 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -14.281871062571092 (T) = (0 -468.47105688344817) / Math.Sqrt((3.129795359383628 / (19)) + (589.0184135506133 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.43330518758096354 = (326.8466903926457 - 468.47105688344817) / 326.8466903926457 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in Microsoft.Extensions.Primitives.StringSegmentBenchmark

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
[LastIndexOf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/Microsoft.Extensions.Primitives.StringSegmentBenchmark.LastIndexOf.html>)	17.03 ns	50.65 ns	2.97	0.12	True

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'Microsoft.Extensions.Primitives.StringSegmentBenchmark*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter Microsoft.Extensions.Primitives.StringSegmentBenchmark* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'Microsoft.Extensions.Primitives.StringSegmentBenchmark*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter Microsoft.Extensions.Primitives.StringSegmentBenchmark* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### Microsoft.Extensions.Primitives.StringSegmentBenchmark.LastIndexOf ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 50.645388026227764 > 17.853684529335045. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -269.6425376340502 (T) = (0 -50.71844995553666) / Math.Sqrt((0.03394921371705588 / (19)) + (0.08348150339345352 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -1.9954335373696042 = (16.931922983033143 - 50.71844995553666) / 16.931922983033143 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Numerics.Tests.Perf_Plane

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
[CreateFromVerticesBenchmark - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Numerics.Tests.Perf_Plane.CreateFromVerticesBenchmark.html>)	77.55 ns	127.28 ns	1.64	0.08	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Numerics.Tests.Perf_Plane*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Numerics.Tests.Perf_Plane* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Numerics.Tests.Perf_Plane*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Numerics.Tests.Perf_Plane* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Numerics.Tests.Perf_Plane.CreateFromVerticesBenchmark ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 127.28349173182706 > 81.40316887842918. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -221.52213291571496 (T) = (0 -127.19546815750938) / Math.Sqrt((0.3616828656673995 / (19)) + (0.19339923959427688 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.6510980537791653 = (77.03689545655645 - 127.19546815750938) / 77.03689545655645 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.IO.Tests.Perf_Path

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
[GetFileNameWithoutExtension - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.IO.Tests.Perf_Path.GetFileNameWithoutExtension.html>)	90.69 ns	208.24 ns	2.30	0.03	False
[GetFileName - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.IO.Tests.Perf_Path.GetFileName.html>)	82.96 ns	138.01 ns	1.66	0.04	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.IO.Tests.Perf_Path*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.IO.Tests.Perf_Path* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.IO.Tests.Perf_Path*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.IO.Tests.Perf_Path* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.IO.Tests.Perf_Path.GetFileNameWithoutExtension ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 208.23706686735176 > 95.62055308249322. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -114.53340954129021 (T) = (0 -208.2797199823717) / Math.Sqrt((0.7673821937721031 / (19)) + (6.020946481410778 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -1.2822562061390592 = (91.26044631716562 - 208.2797199823717) / 91.26044631716562 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` #### System.IO.Tests.Perf_Path.GetFileName ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 138.00776958661172 > 86.8922304784257. IsChangePoint: Marked as a change because one of 1/5/2023 4:05:11 PM, 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -43.545796129598564 (T) = (0 -137.62459308777463) / Math.Sqrt((0.7381735892290818 / (19)) + (9.211328539679872 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -0.6583045779947172 = (82.99114343288815 - 137.62459308777463) / 82.99114343288815 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Collections.ContainsTrue<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
[Array - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Collections.ContainsTrue(Int32).Array(Size%3a%20512).html>)	139.38 μs	427.12 μs	3.06	0.01	True

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Repro Steps

#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order)) - Libraries build extracted to `runtime/artifacts` or build instructions: [Libraries README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/libraries/README.md) args: `-subset libs+libs.tests -rc release -configuration Release -arch $RunArch -framework net8.0` - CoreCLR product build extracted to `runtime/artifacts/bin/coreclr/$RunOS.$RunArch.Release`, build instructions: [CoreCLR README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/README.md) args: `-subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0` - AOT MONO build extracted to `runtime/artifacts/bin/mono/$RunOS.$RunArch.Release`, build instructions: [MONO README](https://github.com/dotnet/runtime/blob/main/docs/workflow/building/mono/README.md) args: `-arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false` - Dotnet SDK installed for dotnet commands - Running commands from the runtime folder Linux ```cmd # Set $RunDir to the runtime directory RunDir=`pwd` # Set the OS, arch, and OSId RunOS='linux' RunOSId='linux' RunArch='x64' # Create aot directory mkdir -p $RunDir/artifacts/bin/aot/sgen mkdir -p $RunDir/artifacts/bin/aot/pack cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack # Create Core Root $RunDir/src/tests/build.sh release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir/performance # One line run: python3 $RunDir/performance/scripts/benchmarks_ci.py --csproj $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Collections.ContainsTrue<Int32>*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Collections.ContainsTrue<Int32>* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200 ``` Windows ```cmd # Set $RunDir to the runtime directory $RunDir="FullPathHere" # Set the OS, arch, and OSId RunOS='windows' RunOSId='win' RunArch='x64' # Create aot directory mkdir $RunDir\artifacts\bin\aot\sgen mkdir $RunDir\artifacts\bin\aot\pack xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /y # Create Core Root $RunDir\src\tests\build.cmd release $RunArch generatelayoutonly /p:LibrariesConfiguration=Release # Clone performance git clone --branch main --depth 1 --quiet https://github.com/dotnet/performance.git $RunDir\performance # One line run: python3 $RunDir\performance\scripts\benchmarks_ci.py --csproj $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --incremental no --architecture $RunArch -f net8.0 --filter 'System.Collections.ContainsTrue<Int32>*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog" # Individual Commands: # Restore dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Build dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 # Run dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Collections.ContainsTrue<Int32>* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200 ```

### Payloads [Baseline]() [Compare]() ### Histogram #### System.Collections.ContainsTrue<Int32>.Array(Size: 512) ```log ``` ### Description of detection logic ``` IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small. IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline. IsRegressionWindowed: Marked as regression because 427.12237364864865 > 146.3423514116746. IsChangePoint: Marked as a change because one of 4/12/2023 6:21:10 AM, 4/18/2023 4:36:42 PM falls between 4/9/2023 9:22:58 PM and 4/18/2023 4:36:42 PM. IsRegressionStdDev: Marked as regression because -502.4537879425603 (T) = (0 -428037.0922793329) / Math.Sqrt((9470.725770312456 / (19)) + (1978181.341314021 / (6))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (6) - 2, .025) and -2.0724640483208217 = (139313.9465743353 - 428037.0922793329) / 139313.9465743353 is less than -0.05. IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small. IsChangeEdgeDetector: Marked as regression because Edge Detector said so. ``` ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	7a57f6dd800e77508a4ba405e623059935c82f43
Compare	887c043eb94be364188e2b23a87efa214ea57f1e
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Regressions in System.Net.Tests.Perf_WebUtility

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
[HtmlDecode_Entities - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Net.Tests.Perf_WebUtility.HtmlDecode_Entities.html>)	972.79 ns	1.67 μs	1.72	0.02	False

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads