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[Perf] Linux/x64: 12 Regressions on 9/12/2023 12:17:30 AM #21828

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performanceautofiler bot opened this issue Sep 19, 2023 · 2 comments
Closed

[Perf] Linux/x64: 12 Regressions on 9/12/2023 12:17:30 AM #21828

performanceautofiler bot opened this issue Sep 19, 2023 · 2 comments
Labels
arch-x64 branch-refs/heads/main kind-micro_mono mono-interpreter os-linux perf-regression PGO Applied if there were any profile guided optimization updates in the observed interval. runtime-mono

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performanceautofiler bot commented Sep 19, 2023 •
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Run Information

Name Value
Architecture x64
OS ubuntu 22.04
Queue TigerUbuntu
Baseline da4e544809b3b10b7db8dc170331988d817240d7
Compare f6c592995a4f8526508da33761230a3850d942ff
Diff Diff
Configs CompilationMode:tiered, LLVM:false, MonoAOT:false, MonoInterpreter:true, RunKind:micro_mono

Regressions in System.Globalization.Tests.StringSearch

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
6.80 μs 7.59 μs 1.12 0.02 True
6.23 μs 6.74 μs 1.08 0.01 True
7.97 μs 8.54 μs 1.07 0.02 True
7.99 μs 8.55 μs 1.07 0.07 False
6.24 μs 6.78 μs 1.09 0.07 True
6.77 μs 7.30 μs 1.08 0.02 True
6.86 μs 7.66 μs 1.12 0.01 True
6.24 μs 6.78 μs 1.09 0.05 True
7.96 μs 8.54 μs 1.07 0.06 False
6.23 μs 6.76 μs 1.08 0.05 True
6.89 μs 7.65 μs 1.11 0.02 True
6.23 μs 6.78 μs 1.09 0.02 True

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Test Report

Repro

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

Repro Steps

Prerequisites (Build files either built locally or downloaded from payload above)

  • Libraries build extracted to runtime/artifacts or build instructions: Libraries README 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 args: -subset clr+libs -rc release -configuration Release -arch $RunArch -framework net8.0
  • Mono Runtime build extracted to runtime/artifacts/bin/mono/$RunOS.$RunArch.Release, build instructions: MONO README args: -arch $RunArch -os $RunOS -s mono+libs+host+packs -c Release
  • Dotnet SDK installed for dotnet commands
  • Running commands from the runtime folder

Linux

# Set $RunDir to the runtime directory
RunDir=`pwd`

# Set the OS, arch, and OSId
RunOS='linux'
RunOSId='linux'
RunArch='x64'

# Create mono dotnet
mkdir -p $RunDir/artifacts/dotnet-mono
$RunDir/build.sh -subset libs.pretest -configuration release -ci -arch $RunArch -testscope innerloop /p:RuntimeArtifactsPath=$RunDir/artifacts/bin/mono/$RunOS.$RunArch.Release /p:RuntimeFlavor=mono
cp $RunDir/artifacts/bin/runtime/net8.0-$RunOS-Release-$RunArch/* $RunDir/artifacts/bin/testhost/net8.0-$RunOS-Release-$RunArch/shared/Microsoft.NETCore.App/8.0.0 -rf
cp $RunDir/artifacts/bin/testhost/net8.0-$RunOS-Release-$RunArch/* $RunDir/artifacts/dotnet-mono -r
cp $RunDir/artifacts/bin/coreclr/$RunOS.$RunArch.Release/corerun $RunDir/artifacts/dotnet-mono/shared/Microsoft.NETCore.App/8.0.0/corerun

# 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

# Use Interpreter
export MONO_ENV_OPTIONS="--interpreter"

# 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 NoInterpreter NoMono --logBuildOutput --generateBinLog --corerun $RunDir/artifacts/dotnet-mono/shared/Microsoft.NETCore.App/8.0.0/corerun" 

# 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 NoInterpreter NoMono --logBuildOutput --generateBinLog --corerun $RunDir/artifacts/dotnet-mono/shared/Microsoft.NETCore.App/8.0.0/corerun --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages

Windows

# Set $RunDir to the runtime directory
$RunDir="FullPathHere"

# Set the OS, arch, and OSId
RunOS='windows'
RunOSId='win'
RunArch='x64'

# Create mono dotnet
mkdir -p $RunDir/artifacts/dotnet-mono
$RunDir/build.sh -subset libs.pretest -configuration release -ci -arch $RunArch -testscope innerloop /p:RuntimeArtifactsPath=$RunDir\artifacts\bin\mono\$RunOS.$RunArch.Release /p:RuntimeFlavor=mono
xcopy $RunDir\artifacts\bin\runtime\net8.0-$RunOS-Release-$RunArch\ $RunDir\artifacts\bin\testhost\net8.0-$RunOS-Release-$RunArch\shared\Microsoft.NETCore.App\8.0.0\ /e /y
xcopy $RunDir\artifacts\bin\testhost\net8.0-$RunOS-Release-$RunArch\ $RunDir\artifacts\dotnet-mono\ /e /y
xcopy $RunDir\artifacts\bin\coreclr\$RunOS.$RunArch.Release\corerun $RunDir\artifacts\dotnet-mono\shared\Microsoft.NETCore.App\8.0.0\corerun /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

# Use Interpreter
export MONO_ENV_OPTIONS="--interpreter"

# 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 NoInterpreter NoMono --logBuildOutput --generateBinLog --corerun $RunDir\artifacts\dotnet-mono\shared\Microsoft.NETCore.App\8.0.0\corerun.exe" 

# 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 NoInterpreter NoMono --logBuildOutput --generateBinLog --corerun $RunDir\artifacts\dotnet-mono\shared\Microsoft.NETCore.App\8.0.0\corerun.exe --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages

Payloads

Baseline
Compare

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, IgnoreCase, True))

ETL Files

Histogram

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 7.590485539096648 > 7.1448604853328135.
IsChangePoint: Marked as a change because one of 9/11/2023 3:39:38 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -16.676329162352896 (T) = (0 -7421.518063096212) / Math.Sqrt((10740.820125139002 / (17)) + (11846.321725304482 / (26))) is less than -2.019540970439573 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (26) - 2, .025) and -0.08002870741121 = (6871.593330963697 - 7421.518063096212) / 6871.593330963697 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.

JIT Disasms

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (, None, False))

ETL Files

Histogram

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 6.744431218529707 > 6.528604320443165.
IsChangePoint: Marked as a change because one of 9/11/2023 3:39:38 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -50.31976168794924 (T) = (0 -6789.82286604238) / Math.Sqrt((269.04146094125434 / (17)) + (2709.617299691666 / (25))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (25) - 2, .025) and -0.09003243301384091 = (6229.009945391382 - 6789.82286604238) / 6229.009945391382 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.

JIT Disasms

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, IgnoreCase, False))

ETL Files

Histogram

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 8.541950847881434 > 8.416938885995156.
IsChangePoint: Marked as a change because one of 9/11/2023 8:56:48 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -20.144190549653437 (T) = (0 -8544.7252807075) / Math.Sqrt((11177.18151570734 / (18)) + (859.8377396401935 / (25))) is less than -2.019540970439573 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (25) - 2, .025) and -0.06422768534250814 = (8029.038708908883 - 8544.7252807075) / 8029.038708908883 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.

JIT Disasms

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (, IgnoreCase, False))

ETL Files

Histogram

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 8.554524659578437 > 8.383868498533433.
IsChangePoint: Marked as a change because one of 9/11/2023 3:39:38 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -12.336434052114233 (T) = (0 -8558.445405070423) / Math.Sqrt((25591.168773102614 / (17)) + (4952.51720316372 / (25))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (25) - 2, .025) and -0.06325558134590568 = (8049.283309885706 - 8558.445405070423) / 8049.283309885706 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.

JIT Disasms

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, None, False))

ETL Files

Histogram

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 6.775788008731967 > 6.539039671067053.
IsChangePoint: Marked as a change because one of 9/11/2023 3:39:38 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -16.95842652244578 (T) = (0 -6797.106929801512) / Math.Sqrt((6984.978375823645 / (17)) + (15829.566698761633 / (25))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (25) - 2, .025) and -0.08768561342711316 = (6249.146670594437 - 6797.106929801512) / 6249.146670594437 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.

JIT Disasms

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, IgnoreCase, True))

ETL Files

Histogram

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 7.302960854851332 > 7.265390173757418.
IsChangePoint: Marked as a change because one of 9/11/2023 8:56:48 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -14.865355242410068 (T) = (0 -7379.4851486208545) / Math.Sqrt((14543.901949647545 / (18)) + (9587.072402544662 / (27))) is less than -2.016692199226234 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (27) - 2, .025) and -0.0737670604197758 = (6872.519581422005 - 7379.4851486208545) / 6872.519581422005 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.

JIT Disasms

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, None, True))

ETL Files

Histogram

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 7.660517772088073 > 7.200631713114322.
IsChangePoint: Marked as a change because one of 9/11/2023 8:56:48 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -18.957730405514035 (T) = (0 -7538.283060714294) / Math.Sqrt((8565.779354268001 / (18)) + (16264.514995066811 / (25))) is less than -2.019540970439573 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (25) - 2, .025) and -0.09218666990916168 = (6902.009764815442 - 7538.283060714294) / 6902.009764815442 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.

JIT Disasms

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, None, False))

ETL Files

Histogram

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 6.781754195500283 > 6.538369939478929.
IsChangePoint: Marked as a change because one of 9/11/2023 8:56:48 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -38.509029612848636 (T) = (0 -6770.774629630168) / Math.Sqrt((2638.517216611332 / (18)) + (904.694607996778 / (25))) is less than -2.019540970439573 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (25) - 2, .025) and -0.08329644256694577 = (6250.15864871332 - 6770.774629630168) / 6250.15864871332 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.

JIT Disasms

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, IgnoreCase, False))

ETL Files

Histogram

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 8.536024734277191 > 8.363840882393724.
IsChangePoint: Marked as a change because one of 9/11/2023 3:39:38 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -14.322236681857873 (T) = (0 -8528.300077586588) / Math.Sqrt((19479.366898690067 / (17)) + (543.51913757175 / (25))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (25) - 2, .025) and -0.06087768130264647 = (8038.909883667955 - 8528.300077586588) / 8038.909883667955 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.

JIT Disasms

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, IgnoreNonSpace, False))

ETL Files

Histogram

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 6.755015972824516 > 6.538635940827095.
IsChangePoint: Marked as a change because one of 9/11/2023 3:39:38 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -18.973001976273736 (T) = (0 -6795.272633532069) / Math.Sqrt((4810.256624777602 / (17)) + (14389.900073658857 / (25))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (25) - 2, .025) and -0.0891005791279389 = (6239.343513133707 - 6795.272633532069) / 6239.343513133707 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.

JIT Disasms

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, None, True))

ETL Files

Histogram

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 7.6536268628585455 > 7.230337065761833.
IsChangePoint: Marked as a change because one of 9/11/2023 3:39:38 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -15.596838517254975 (T) = (0 -7505.989105510803) / Math.Sqrt((11936.57936857437 / (17)) + (15586.249835183748 / (25))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (25) - 2, .025) and -0.08184664425556452 = (6938.126716357096 - 7505.989105510803) / 6938.126716357096 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.

JIT Disasms

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, None, False))

ETL Files

Histogram

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 6.775398812290428 > 6.544707793048156.
IsChangePoint: Marked as a change because one of 9/11/2023 3:39:38 PM, 9/18/2023 8:11:22 PM falls between 9/9/2023 9:29:58 PM and 9/18/2023 8:11:22 PM.
IsRegressionStdDev: Marked as regression because -28.69728438308208 (T) = (0 -6779.738087531058) / Math.Sqrt((4017.3874716041214 / (17)) + (2631.8101384430634 / (26))) is less than -2.019540970439573 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (26) - 2, .025) and -0.08432370970354215 = (6252.503774343053 - 6779.738087531058) / 6252.503774343053 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.

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository
@performanceautofiler performanceautofiler bot mentioned this issue Sep 19, 2023
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@lewing The regressions may be related to dotnet/runtime#91884 (comment).

This was referenced Sep 20, 2023
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@MihaZupan MihaZupan mentioned this issue Sep 27, 2023
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Mitigated by dotnet/runtime@dd8e9aa.

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arch-x64 branch-refs/heads/main kind-micro_mono mono-interpreter os-linux perf-regression PGO Applied if there were any profile guided optimization updates in the observed interval. runtime-mono
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