[Perf] Linux/x64: 104 Regressions on 2/28/2023 11:10:36 AM


### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [967250cc86b4c613015066b47b882e7424fdb590](https://github.com/dotnet/runtime/commit/967250cc86b4c613015066b47b882e7424fdb590)
Compare | [4862343c61f698da986901a182e94df24da1487f](https://github.com/dotnet/runtime/commit/4862343c61f698da986901a182e94df24da1487f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/967250cc86b4c613015066b47b882e7424fdb590...4862343c61f698da986901a182e94df24da1487f)


### Regressions in System.IO.Tests.StringReaderReadLineTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ReadLineAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.IO.Tests.StringReaderReadLineTests.ReadLineAsync(LineLengthRange%3a%20%5b%20%20%200%2c%20%20%20%200%5d).html>) | 3.35 ms | 4.07 ms | 1.21 | 0.12 | False | | |
[ReadLine - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.IO.Tests.StringReaderReadLineTests.ReadLine(LineLengthRange%3a%20%5b%20%20%200%2c%20%20%20%200%5d).html>) | 1.50 ms | 2.15 ms | 1.43 | 0.19 | False | | |
[ReadLine - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.IO.Tests.StringReaderReadLineTests.ReadLine(LineLengthRange%3a%20%5b%20%20%201%2c%20%20%20%201%5d).html>) | 1.46 ms | 1.79 ms | 1.22 | 0.15 | False | | |
[ReadLineAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.IO.Tests.StringReaderReadLineTests.ReadLineAsync(LineLengthRange%3a%20%5b%20%20%201%2c%20%20%20%201%5d).html>) | 2.48 ms | 2.76 ms | 1.11 | 0.07 | False | | |
[ReadLine - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.IO.Tests.StringReaderReadLineTests.ReadLine(LineLengthRange%3a%20%5b%20%20%201%2c%20%20%20%208%5d).html>) | 658.37 μs | 741.57 μs | 1.13 | 0.08 | False | | |
[ReadLineAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.IO.Tests.StringReaderReadLineTests.ReadLineAsync(LineLengthRange%3a%20%5b%20%20%201%2c%20%20%20%208%5d).html>) | 1.05 ms | 1.13 ms | 1.07 | 0.05 | False | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_08_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.IO.Tests.StringReaderReadLineTests.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e0f43621-842b-470c-a8f9-cc8061e0015967400ddd2e5419c82/5ed8c426-cc23-4656-ac9e-2dce569f3b5c.zip?sv=2021-08-06&se=2023-03-30T04%3A04%3A02Z&sr=c&sp=rl&sig=GWst5HUD04PYfOCD1kvil0FOwMfthnav2E4ExLHHsQY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b3a6748b-1d19-44ff-bf40-6d986794a6ac517e9bae4ed4e2b89/e09f4494-f1eb-4490-91bc-2634561c394d.zip?sv=2021-08-06&se=2023-03-30T15%3A33%3A44Z&sr=c&sp=rl&sig=r0Qw70yiK1cbEQB7MY97w%2BNVSjl7n5LAW6hkK0nFcpE%3D>)

<details>
   <summary>Repro Steps</summary>


#### Prerequisites (Build files either built locally or downloaded from payload above)
- 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 $RunArch -framework net8.0`
- Mono Runtime build extracted to `runtime/artifacts/bin/mono/$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`
- 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 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.IO.Tests.StringReaderReadLineTests*' --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.IO.Tests.StringReaderReadLineTests*' --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
```cmd
# 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.IO.Tests.StringReaderReadLineTests*' --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.IO.Tests.StringReaderReadLineTests*' --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
```

</details>

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e0f43621-842b-470c-a8f9-cc8061e0015967400ddd2e5419c82/5ed8c426-cc23-4656-ac9e-2dce569f3b5c.zip?sv=2021-08-06&se=2023-03-30T04%3A04%3A02Z&sr=c&sp=rl&sig=GWst5HUD04PYfOCD1kvil0FOwMfthnav2E4ExLHHsQY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b3a6748b-1d19-44ff-bf40-6d986794a6ac517e9bae4ed4e2b89/e09f4494-f1eb-4490-91bc-2634561c394d.zip?sv=2021-08-06&se=2023-03-30T15%3A33%3A44Z&sr=c&sp=rl&sig=r0Qw70yiK1cbEQB7MY97w%2BNVSjl7n5LAW6hkK0nFcpE%3D>)
### Histogram

#### System.IO.Tests.StringReaderReadLineTests.ReadLineAsync(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 4.065096497596154 > 3.5968028440062594.
IsChangePoint: Marked as a change because one of 2/28/2023 7:53:18 AM, 3/7/2023 7:56:26 PM falls between 2/26/2023 10:10:21 PM and 3/7/2023 7:56:26 PM.
IsRegressionStdDev: Marked as regression because -24.0953411000282 (T) = (0 -4117788.421431494) / Math.Sqrt((10512005625.040964 / (22)) + (13293842293.98565 / (47))) is less than -1.9960083540247138 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (47) - 2, .025) and -0.19244384782975107 = (3453234.656647248 - 4117788.421431494) / 3453234.656647248 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.StringReaderReadLineTests.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 2.1519837749999997 > 1.5203019047011643.
IsChangePoint: Marked as a change because one of 2/28/2023 7:53:18 AM, 3/7/2023 7:56:26 PM falls between 2/26/2023 10:10:21 PM and 3/7/2023 7:56:26 PM.
IsRegressionStdDev: Marked as regression because -42.38143530263677 (T) = (0 -2182336.301970648) / Math.Sqrt((3291663966.2110806 / (22)) + (5505714927.335648 / (47))) is less than -1.9960083540247138 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (47) - 2, .025) and -0.4645332385379651 = (1490124.1191010876 - 2182336.301970648) / 1490124.1191010876 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.StringReaderReadLineTests.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 1.7909505483796295 > 1.5393274062573963.
IsChangePoint: Marked as a change because one of 2/28/2023 7:53:18 AM, 3/7/2023 7:56:26 PM falls between 2/26/2023 10:10:21 PM and 3/7/2023 7:56:26 PM.
IsRegressionStdDev: Marked as regression because -41.75035461319824 (T) = (0 -1790714.7778390918) / Math.Sqrt((539328621.9587694 / (22)) + (1672186975.1893716 / (47))) is less than -1.9960083540247138 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (47) - 2, .025) and -0.2206092616018797 = (1467066.352985908 - 1790714.7778390918) / 1467066.352985908 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.StringReaderReadLineTests.ReadLineAsync(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 2.7554681875 > 2.583443323069307.
IsChangePoint: Marked as a change because one of 2/14/2023 7:27:15 AM, 2/28/2023 7:53:18 AM, 3/7/2023 7:56:26 PM falls between 2/26/2023 10:10:21 PM and 3/7/2023 7:56:26 PM.
IsRegressionStdDev: Marked as regression because -24.187181563672954 (T) = (0 -2789125.8035867717) / Math.Sqrt((1986750739.3879602 / (22)) + (3816189350.951928 / (47))) is less than -1.9960083540247138 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (47) - 2, .025) and -0.1281168692638585 = (2472373.1020942787 - 2789125.8035867717) / 2472373.1020942787 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.StringReaderReadLineTests.ReadLine(LineLengthRange: [   1,    8])

```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 741.5686595833333 > 684.8737635544816.
IsChangePoint: Marked as a change because one of 1/27/2023 11:43:56 PM, 2/28/2023 7:53:18 AM, 3/7/2023 7:56:26 PM falls between 2/26/2023 10:10:21 PM and 3/7/2023 7:56:26 PM.
IsRegressionStdDev: Marked as regression because -22.944387683681423 (T) = (0 -735178.5287731164) / Math.Sqrt((165704716.33802143 / (22)) + (192256805.28611025 / (47))) is less than -1.9960083540247138 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (47) - 2, .025) and -0.11906701068276782 = (656956.6627869474 - 735178.5287731164) / 656956.6627869474 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.StringReaderReadLineTests.ReadLineAsync(LineLengthRange: [   1,    8])

```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 1.127010235012755 > 1.1110237520415691.
IsChangePoint: Marked as a change because one of 1/30/2023 11:52:26 AM, 2/28/2023 7:53:18 AM, 3/7/2023 7:56:26 PM falls between 2/26/2023 10:10:21 PM and 3/7/2023 7:56:26 PM.
IsRegressionStdDev: Marked as regression because -12.536234484805675 (T) = (0 -1129766.6417521355) / Math.Sqrt((305738163.5081412 / (22)) + (668817131.6882372 / (47))) is less than -1.9960083540247138 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (47) - 2, .025) and -0.06252930712481944 = (1063280.4518204385 - 1129766.6417521355) / 1063280.4518204385 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)

</details>

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [967250cc86b4c613015066b47b882e7424fdb590](https://github.com/dotnet/runtime/commit/967250cc86b4c613015066b47b882e7424fdb590)
Compare | [4862343c61f698da986901a182e94df24da1487f](https://github.com/dotnet/runtime/commit/4862343c61f698da986901a182e94df24da1487f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/967250cc86b4c613015066b47b882e7424fdb590...4862343c61f698da986901a182e94df24da1487f)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[EqualsBenchmark - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Numerics.Tests.Perf_Plane.EqualsBenchmark.html>) | 65.84 ns | 403.25 ns | 6.12 | 0.21 | False | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_08_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.Numerics.Tests.Perf_Plane.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e0f43621-842b-470c-a8f9-cc8061e0015967400ddd2e5419c82/5ed8c426-cc23-4656-ac9e-2dce569f3b5c.zip?sv=2021-08-06&se=2023-03-30T04%3A04%3A02Z&sr=c&sp=rl&sig=GWst5HUD04PYfOCD1kvil0FOwMfthnav2E4ExLHHsQY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b3a6748b-1d19-44ff-bf40-6d986794a6ac517e9bae4ed4e2b89/e09f4494-f1eb-4490-91bc-2634561c394d.zip?sv=2021-08-06&se=2023-03-30T15%3A33%3A44Z&sr=c&sp=rl&sig=r0Qw70yiK1cbEQB7MY97w%2BNVSjl7n5LAW6hkK0nFcpE%3D>)

<details>
   <summary>Repro Steps</summary>


#### Prerequisites (Build files either built locally or downloaded from payload above)
- 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 $RunArch -framework net8.0`
- Mono Runtime build extracted to `runtime/artifacts/bin/mono/$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`
- 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 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.Numerics.Tests.Perf_Plane*' --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.Numerics.Tests.Perf_Plane*' --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
```cmd
# 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.Numerics.Tests.Perf_Plane*' --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.Numerics.Tests.Perf_Plane*' --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
```

</details>

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e0f43621-842b-470c-a8f9-cc8061e0015967400ddd2e5419c82/5ed8c426-cc23-4656-ac9e-2dce569f3b5c.zip?sv=2021-08-06&se=2023-03-30T04%3A04%3A02Z&sr=c&sp=rl&sig=GWst5HUD04PYfOCD1kvil0FOwMfthnav2E4ExLHHsQY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b3a6748b-1d19-44ff-bf40-6d986794a6ac517e9bae4ed4e2b89/e09f4494-f1eb-4490-91bc-2634561c394d.zip?sv=2021-08-06&se=2023-03-30T15%3A33%3A44Z&sr=c&sp=rl&sig=r0Qw70yiK1cbEQB7MY97w%2BNVSjl7n5LAW6hkK0nFcpE%3D>)
### Histogram

#### System.Numerics.Tests.Perf_Plane.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 403.2526115199343 > 66.56978069000891.
IsChangePoint: Marked as a change because one of 2/28/2023 7:53:18 AM, 3/7/2023 7:56:26 PM falls between 2/26/2023 10:10:21 PM and 3/7/2023 7:56:26 PM.
IsRegressionStdDev: Marked as regression because -233.82228174625746 (T) = (0 -405.5316621304044) / Math.Sqrt((6.535261659879035 / (22)) + (88.61716959137709 / (47))) is less than -1.9960083540247138 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (47) - 2, .025) and -5.747951475599715 = (60.09700330489756 - 405.5316621304044) / 60.09700330489756 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)

</details>



### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [967250cc86b4c613015066b47b882e7424fdb590](https://github.com/dotnet/runtime/commit/967250cc86b4c613015066b47b882e7424fdb590)
Compare | [4862343c61f698da986901a182e94df24da1487f](https://github.com/dotnet/runtime/commit/4862343c61f698da986901a182e94df24da1487f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/967250cc86b4c613015066b47b882e7424fdb590...4862343c61f698da986901a182e94df24da1487f)


### Regressions in System.Numerics.Tests.Perf_Matrix4x4

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_x64_ubuntu 18.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Numerics.Tests.Perf_Matrix4x4.EqualsBenchmark.html>) | 381.57 ns | 1.77 μs | 4.63 | 0.15 | False | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_08_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.Numerics.Tests.Perf_Matrix4x4.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e0f43621-842b-470c-a8f9-cc8061e0015967400ddd2e5419c82/5ed8c426-cc23-4656-ac9e-2dce569f3b5c.zip?sv=2021-08-06&se=2023-03-30T04%3A04%3A02Z&sr=c&sp=rl&sig=GWst5HUD04PYfOCD1kvil0FOwMfthnav2E4ExLHHsQY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b3a6748b-1d19-44ff-bf40-6d986794a6ac517e9bae4ed4e2b89/e09f4494-f1eb-4490-91bc-2634561c394d.zip?sv=2021-08-06&se=2023-03-30T15%3A33%3A44Z&sr=c&sp=rl&sig=r0Qw70yiK1cbEQB7MY97w%2BNVSjl7n5LAW6hkK0nFcpE%3D>)

<details>
   <summary>Repro Steps</summary>


#### Prerequisites (Build files either built locally or downloaded from payload above)
- 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 $RunArch -framework net8.0`
- Mono Runtime build extracted to `runtime/artifacts/bin/mono/$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`
- 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 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.Numerics.Tests.Perf_Matrix4x4*' --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.Numerics.Tests.Perf_Matrix4x4*' --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
```cmd
# 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.Numerics.Tests.Perf_Matrix4x4*' --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.Numerics.Tests.Perf_Matrix4x4*' --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
```

</details>

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e0f43621-842b-470c-a8f9-cc8061e0015967400ddd2e5419c82/5ed8c426-cc23-4656-ac9e-2dce569f3b5c.zip?sv=2021-08-06&se=2023-03-30T04%3A04%3A02Z&sr=c&sp=rl&sig=GWst5HUD04PYfOCD1kvil0FOwMfthnav2E4ExLHHsQY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b3a6748b-1d19-44ff-bf40-6d986794a6ac517e9bae4ed4e2b89/e09f4494-f1eb-4490-91bc-2634561c394d.zip?sv=2021-08-06&se=2023-03-30T15%3A33%3A44Z&sr=c&sp=rl&sig=r0Qw70yiK1cbEQB7MY97w%2BNVSjl7n5LAW6hkK0nFcpE%3D>)
### Histogram

#### System.Numerics.Tests.Perf_Matrix4x4.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 1.7675891702408444 > 402.66837715289284.
IsChangePoint: Marked as a change because one of 2/28/2023 7:53:18 AM, 3/7/2023 7:56:26 PM falls between 2/26/2023 10:10:21 PM and 3/7/2023 7:56:26 PM.
IsRegressionStdDev: Marked as regression because -305.2960877538278 (T) = (0 -1785.8758065587926) / Math.Sqrt((68.40443675215965 / (22)) + (843.7617671209377 / (47))) is less than -1.9960083540247138 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (47) - 2, .025) and -3.6412833837172554 = (384.78060030207956 - 1785.8758065587926) / 384.78060030207956 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)

</details>




Architecture	x64
OS	ubuntu 18.04
Baseline	967250cc86b4c613015066b47b882e7424fdb590
Compare	4862343c61f698da986901a182e94df24da1487f
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ReadLineAsync - Duration of single invocation	3.35 ms	4.07 ms	1.21	0.12	False
ReadLine - Duration of single invocation	1.50 ms	2.15 ms	1.43	0.19	False
ReadLine - Duration of single invocation	1.46 ms	1.79 ms	1.22	0.15	False
ReadLineAsync - Duration of single invocation	2.48 ms	2.76 ms	1.11	0.07	False
ReadLine - Duration of single invocation	658.37 μs	741.57 μs	1.13	0.08	False
ReadLineAsync - Duration of single invocation	1.05 ms	1.13 ms	1.07	0.05	False

[Perf] Linux/x64: 104 Regressions on 2/28/2023 11:10:36 AM #13747

Description

Run Information

Regressions in System.IO.Tests.StringReaderReadLineTests

Repro

Payloads

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

Payloads

Histogram

System.IO.Tests.StringReaderReadLineTests.ReadLineAsync(LineLengthRange: [ 0, 0])

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Numerics.Tests.Perf_Plane

Repro

Payloads

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

Payloads

Histogram

System.Numerics.Tests.Perf_Plane.EqualsBenchmark

Description of detection logic

Docs

Run Information

Regressions in System.Numerics.Tests.Perf_Matrix4x4

Repro

Payloads

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

Payloads

Histogram

System.Numerics.Tests.Perf_Matrix4x4.EqualsBenchmark

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions