[Perf] Linux/arm64: 7 Regressions on 1/5/2024 11:30:40 PM

[performanceautofiler[bot]]

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	22068a8f96d6d1c01b26db70fd24a433e1fdd5ef
Compare	23258f52b9939d8427e6790ec851ddd1fe6605ca
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Memory.Span<Byte>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[StartsWith - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).StartsWith(Size%3a%20512).html>) 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	16.64 ns	18.16 ns	1.09	0.32	False
[BinarySearch - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).BinarySearch(Size%3a%2033).html>) 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	8.32 ns	10.33 ns	1.24	0.03	False
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).Reverse(Size%3a%20512).html>) 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	17.12 ns	25.62 ns	1.50	0.30	False
[BinarySearch - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).BinarySearch(Size%3a%20512).html>) 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	14.23 ns	15.90 ns	1.12	0.04	False
[SequenceEqual - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).SequenceEqual(Size%3a%20512).html>) 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	29.41 ns	33.03 ns	1.12	0.05	False
[Fill - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).Fill(Size%3a%2033).html>) 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	3.64 ns	5.51 ns	1.51	0.41	False

Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span<Byte>*'

### Payloads [Baseline]() [Compare]() ### System.Memory.Span<Byte>.StartsWith(Size: 512) #### ETL Files #### Histogram #### JIT Disasms ### System.Memory.Span<Byte>.BinarySearch(Size: 33) #### ETL Files #### Histogram #### JIT Disasms ### System.Memory.Span<Byte>.Reverse(Size: 512) #### ETL Files #### Histogram #### JIT Disasms ### System.Memory.Span<Byte>.BinarySearch(Size: 512) #### ETL Files #### Histogram #### JIT Disasms ### System.Memory.Span<Byte>.SequenceEqual(Size: 512) #### ETL Files #### Histogram #### JIT Disasms ### System.Memory.Span<Byte>.Fill(Size: 33) #### ETL Files #### Histogram #### JIT Disasms ### 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	22068a8f96d6d1c01b26db70fd24a433e1fdd5ef
Compare	23258f52b9939d8427e6790ec851ddd1fe6605ca
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.CtorFromCollection<String>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[List - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.CtorFromCollection(String).List(Size%3a%20512).html>) 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	394.07 ns	433.80 ns	1.10	0.12	False

Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.CtorFromCollection<String>*'

### Payloads [Baseline]() [Compare]() ### System.Collections.CtorFromCollection<String>.List(Size: 512) #### ETL Files #### Histogram #### JIT Disasms ### 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)

[EgorBo]

We suspect it's https://github.com/dotnet/runtime/pull/96526, closing and leaving https://github.com/dotnet/perf-autofiling-issues/issues/27124 open as look again