[Perf] Linux/x64: 8 Regressions on 3/19/2024 2:36:03 PM

[performanceautofiler[bot]]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	d8141743fecaeff4711112ca08a3226ac5d68011
Compare	e5f0c361f5baea5e2b56e1776143d841b0cc6e6c
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Globalization.Tests.StringSearch

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[IsPrefix_DifferentFirstChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options%3a%20(en-US%2c%20IgnoreNonSpace%2c%20False)).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	7.01 ns	8.87 ns	1.27	0.04	False
[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(en-US%2c%20None%2c%20False)).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	118.05 ns	158.39 ns	1.34	0.02	False
[IsPrefix_DifferentFirstChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options%3a%20(%2c%20None%2c%20False)).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	7.02 ns	8.93 ns	1.27	0.02	False
[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(en-US%2c%20IgnoreNonSpace%2c%20False)).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	117.95 ns	158.56 ns	1.34	0.02	False
[IsPrefix_DifferentFirstChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options%3a%20(en-US%2c%20None%2c%20False)).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	6.97 ns	8.87 ns	1.27	0.02	False
[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(%2c%20None%2c%20False)).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	117.71 ns	158.71 ns	1.35	0.02	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.Globalization.Tests.StringSearch*'

### System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options: (en-US, IgnoreNonSpace, False)) #### ETL Files #### Histogram #### JIT Disasms ### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, None, False)) #### ETL Files #### Histogram #### JIT Disasms ### System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options: (, None, False)) #### ETL Files #### Histogram #### JIT Disasms ### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, IgnoreNonSpace, False)) #### ETL Files #### Histogram #### JIT Disasms ### System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options: (en-US, None, False)) #### ETL Files #### Histogram #### JIT Disasms ### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (, None, False)) #### 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	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	d8141743fecaeff4711112ca08a3226ac5d68011
Compare	e5f0c361f5baea5e2b56e1776143d841b0cc6e6c
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Perf_Ascii

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[EqualsIgnoreCase_DifferentCase_Bytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Perf_Ascii.EqualsIgnoreCase_DifferentCase_Bytes(Size%3a%206).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	9.89 ns	12.15 ns	1.23	0.04	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.Text.Perf_Ascii*'

### System.Text.Perf_Ascii.EqualsIgnoreCase_DifferentCase_Bytes(Size: 6) #### 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	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	d8141743fecaeff4711112ca08a3226ac5d68011
Compare	e5f0c361f5baea5e2b56e1776143d841b0cc6e6c
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Tests.Perf_Encoding

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[GetByteCount - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Tests.Perf_Encoding.GetByteCount(size%3a%2016%2c%20encName%3a%20%22utf-8%22).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	7.75 ns	9.15 ns	1.18	0.08	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.Text.Tests.Perf_Encoding*'

### System.Text.Tests.Perf_Encoding.GetByteCount(size: 16, encName: "utf-8") #### 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)

[LoopedBard3]

Potentially noise or trimodal.