[Perf] Linux/x64: 9 Regressions on 4/9/2023 11:24:15 AM

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 18.04
Queue | TigerUbuntu
Baseline | [1411364699b5784040e86f76cb3db8200f6a2c8c](https://github.com/dotnet/runtime/commit/1411364699b5784040e86f76cb3db8200f6a2c8c)
Compare | [86b48d7c6f081c12dcc9c048fb53de1b78c9966f](https://github.com/dotnet/runtime/commit/86b48d7c6f081c12dcc9c048fb53de1b78c9966f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1411364699b5784040e86f76cb3db8200f6a2c8c...86b48d7c6f081c12dcc9c048fb53de1b78c9966f)
Configs | CompilationMode:tiered, LLVM:false, MonoAOT:false, MonoInterpreter:true, RunKind:micro_mono


### Regressions in System.Tests.Perf_DateTimeOffset

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToString - 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_RunKind=micro_mono/System.Tests.Perf_DateTimeOffset.ToString(format%3a%20%22r%22).html>) | 509.32 ns | 577.61 ns | 1.13 | 0.05 | False | | |
[ToString - 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_RunKind=micro_mono/System.Tests.Perf_DateTimeOffset.ToString(format%3a%20%22G%22).html>) | 2.31 μs | 2.86 μs | 1.24 | 0.04 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Tests.Perf_DateTimeOffset_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Tests.Perf_DateTimeOffset_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Tests.Perf_DateTimeOffset.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-bf470d94-acf1-4eac-a2d2-bbe5a0b14345daf2c444bd74ae780/817adaab-e45d-4039-b0b5-0607d31f0e8b.zip?sv=2021-08-06&se=2023-05-09T02%3A16%3A09Z&sr=c&sp=rl&sig=GrKe%2BEMmzZmLXJL%2FqcK9eTeOymBz1TpjH4bKYZAPaWY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ec4f5a9c-dd48-49ba-bd94-8752c3e06f577e5439716f94e3197/76a84ebb-0998-4eb2-b946-d6ad0952ff82.zip?sv=2021-08-06&se=2023-05-09T15%3A22%3A44Z&sr=c&sp=rl&sig=IsDv1OiJ5KZi6MIV4k312PcUDpEMpB3DXdNeGoQPWeA%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.Tests.Perf_DateTimeOffset*' --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.Tests.Perf_DateTimeOffset*' --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.Tests.Perf_DateTimeOffset*' --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.Tests.Perf_DateTimeOffset*' --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-bf470d94-acf1-4eac-a2d2-bbe5a0b14345daf2c444bd74ae780/817adaab-e45d-4039-b0b5-0607d31f0e8b.zip?sv=2021-08-06&se=2023-05-09T02%3A16%3A09Z&sr=c&sp=rl&sig=GrKe%2BEMmzZmLXJL%2FqcK9eTeOymBz1TpjH4bKYZAPaWY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ec4f5a9c-dd48-49ba-bd94-8752c3e06f577e5439716f94e3197/76a84ebb-0998-4eb2-b946-d6ad0952ff82.zip?sv=2021-08-06&se=2023-05-09T15%3A22%3A44Z&sr=c&sp=rl&sig=IsDv1OiJ5KZi6MIV4k312PcUDpEMpB3DXdNeGoQPWeA%3D>)
### Histogram

#### System.Tests.Perf_DateTimeOffset.ToString(format: "r")

```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 577.6102789013113 > 546.9338536927786.
IsChangePoint: Marked as a change because one of 2/6/2023 11:23:26 AM, 3/17/2023 9:25:32 PM, 4/9/2023 4:09:45 AM, 4/11/2023 1:13:25 AM falls between 4/1/2023 8:54:51 PM and 4/11/2023 1:13:25 AM.
IsRegressionStdDev: Marked as regression because -9.933975737455164 (T) = (0 -568.8743735552908) / Math.Sqrt((67.46386328083993 / (56)) + (122.04897315932563 / (6))) is less than -2.0002978220134566 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (56) + (6) - 2, .025) and -0.08820713394057098 = (522.7629518429146 - 568.8743735552908) / 522.7629518429146 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_DateTimeOffset.ToString(format: "G")

```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 2.8607693693069915 > 2.4390475726833767.
IsChangePoint: Marked as a change because one of 2/15/2023 8:55:14 PM, 3/16/2023 9:46:36 PM, 4/9/2023 4:09:45 AM, 4/11/2023 1:13:25 AM falls between 4/1/2023 8:54:51 PM and 4/11/2023 1:13:25 AM.
IsRegressionStdDev: Marked as regression because -37.26653694901099 (T) = (0 -2869.106069517579) / Math.Sqrt((1084.1694552884844 / (57)) + (1413.9276333804073 / (7))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (57) + (7) - 2, .025) and -0.2393084143349107 = (2315.086411365421 - 2869.106069517579) / 2315.086411365421 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

Name | Value
-- | --
Architecture | x64
OS | ubuntu 18.04
Queue | TigerUbuntu
Baseline | [1411364699b5784040e86f76cb3db8200f6a2c8c](https://github.com/dotnet/runtime/commit/1411364699b5784040e86f76cb3db8200f6a2c8c)
Compare | [86b48d7c6f081c12dcc9c048fb53de1b78c9966f](https://github.com/dotnet/runtime/commit/86b48d7c6f081c12dcc9c048fb53de1b78c9966f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1411364699b5784040e86f76cb3db8200f6a2c8c...86b48d7c6f081c12dcc9c048fb53de1b78c9966f)
Configs | CompilationMode:tiered, LLVM:false, MonoAOT:false, MonoInterpreter:true, RunKind:micro_mono


### Regressions in System.Globalization.Tests.Perf_DateTimeCultureInfo

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToString - 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_RunKind=micro_mono/System.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring%3a%20fr).html>) | 2.01 μs | 2.38 μs | 1.18 | 0.02 | False | | |
[ToString - 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_RunKind=micro_mono/System.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring%3a%20).html>) | 1.99 μs | 2.45 μs | 1.23 | 0.02 | False | | |
[ToString - 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_RunKind=micro_mono/System.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring%3a%20da).html>) | 1.98 μs | 2.30 μs | 1.16 | 0.01 | False | | |
[ToString - 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_RunKind=micro_mono/System.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring%3a%20ja).html>) | 1.90 μs | 2.48 μs | 1.31 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Globalization.Tests.Perf_DateTimeCultureInfo_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Globalization.Tests.Perf_DateTimeCultureInfo_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Globalization.Tests.Perf_DateTimeCultureInfo_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Globalization.Tests.Perf_DateTimeCultureInfo_4.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Globalization.Tests.Perf_DateTimeCultureInfo.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-bf470d94-acf1-4eac-a2d2-bbe5a0b14345daf2c444bd74ae780/817adaab-e45d-4039-b0b5-0607d31f0e8b.zip?sv=2021-08-06&se=2023-05-09T02%3A16%3A09Z&sr=c&sp=rl&sig=GrKe%2BEMmzZmLXJL%2FqcK9eTeOymBz1TpjH4bKYZAPaWY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ec4f5a9c-dd48-49ba-bd94-8752c3e06f577e5439716f94e3197/76a84ebb-0998-4eb2-b946-d6ad0952ff82.zip?sv=2021-08-06&se=2023-05-09T15%3A22%3A44Z&sr=c&sp=rl&sig=IsDv1OiJ5KZi6MIV4k312PcUDpEMpB3DXdNeGoQPWeA%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.Globalization.Tests.Perf_DateTimeCultureInfo*' --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.Perf_DateTimeCultureInfo*' --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.Globalization.Tests.Perf_DateTimeCultureInfo*' --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.Perf_DateTimeCultureInfo*' --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-bf470d94-acf1-4eac-a2d2-bbe5a0b14345daf2c444bd74ae780/817adaab-e45d-4039-b0b5-0607d31f0e8b.zip?sv=2021-08-06&se=2023-05-09T02%3A16%3A09Z&sr=c&sp=rl&sig=GrKe%2BEMmzZmLXJL%2FqcK9eTeOymBz1TpjH4bKYZAPaWY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ec4f5a9c-dd48-49ba-bd94-8752c3e06f577e5439716f94e3197/76a84ebb-0998-4eb2-b946-d6ad0952ff82.zip?sv=2021-08-06&se=2023-05-09T15%3A22%3A44Z&sr=c&sp=rl&sig=IsDv1OiJ5KZi6MIV4k312PcUDpEMpB3DXdNeGoQPWeA%3D>)
### Histogram

#### System.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring: fr)

```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 2.3755194467776413 > 2.0993103410158898.
IsChangePoint: Marked as a change because one of 3/16/2023 9:46:36 PM, 4/9/2023 4:09:45 AM, 4/11/2023 1:13:25 AM falls between 4/1/2023 8:54:51 PM and 4/11/2023 1:13:25 AM.
IsRegressionStdDev: Marked as regression because -26.919238748219314 (T) = (0 -2451.143034431501) / Math.Sqrt((692.3473388389348 / (57)) + (1774.6862967191882 / (7))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (57) + (7) - 2, .025) and -0.21803587486977086 = (2012.3734325095888 - 2451.143034431501) / 2012.3734325095888 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.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring: )

```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 2.4481307163813524 > 2.0946516297629607.
IsChangePoint: Marked as a change because one of 3/16/2023 9:46:36 PM, 4/9/2023 4:09:45 AM, 4/11/2023 1:13:25 AM falls between 4/1/2023 8:54:51 PM and 4/11/2023 1:13:25 AM.
IsRegressionStdDev: Marked as regression because -34.60405923746307 (T) = (0 -2463.9948277297053) / Math.Sqrt((775.9136794843266 / (56)) + (1118.095454248092 / (7))) is less than -1.9996235849941724 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (56) + (7) - 2, .025) and -0.22703861895010188 = (2008.0825409048555 - 2463.9948277297053) / 2008.0825409048555 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.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring: da)

```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 2.301081452064466 > 2.067339361327699.
IsChangePoint: Marked as a change because one of 2/17/2023 10:37:11 AM, 3/16/2023 9:46:36 PM, 4/9/2023 4:09:45 AM, 4/11/2023 1:13:25 AM falls between 4/1/2023 8:54:51 PM and 4/11/2023 1:13:25 AM.
IsRegressionStdDev: Marked as regression because -14.322649104295033 (T) = (0 -2239.150236352519) / Math.Sqrt((758.5272978566549 / (57)) + (1943.4623924938471 / (6))) is less than -1.9996235849941724 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (57) + (6) - 2, .025) and -0.1330950026757731 = (1976.136361968614 - 2239.150236352519) / 1976.136361968614 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.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring: ja)

```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 2.4798885098957166 > 2.0228823988574676.
IsChangePoint: Marked as a change because one of 3/16/2023 9:46:36 PM, 4/9/2023 4:09:45 AM, 4/11/2023 1:13:25 AM falls between 4/1/2023 8:54:51 PM and 4/11/2023 1:13:25 AM.
IsRegressionStdDev: Marked as regression because -40.28509601076609 (T) = (0 -2453.3048804068976) / Math.Sqrt((751.4691110681406 / (57)) + (1029.532443389191 / (7))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (57) + (7) - 2, .025) and -0.2624291702120453 = (1943.32081220432 - 2453.3048804068976) / 1943.32081220432 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

Name | Value
-- | --
Architecture | x64
OS | ubuntu 18.04
Queue | TigerUbuntu
Baseline | [1411364699b5784040e86f76cb3db8200f6a2c8c](https://github.com/dotnet/runtime/commit/1411364699b5784040e86f76cb3db8200f6a2c8c)
Compare | [86b48d7c6f081c12dcc9c048fb53de1b78c9966f](https://github.com/dotnet/runtime/commit/86b48d7c6f081c12dcc9c048fb53de1b78c9966f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1411364699b5784040e86f76cb3db8200f6a2c8c...86b48d7c6f081c12dcc9c048fb53de1b78c9966f)
Configs | CompilationMode:tiered, LLVM:false, MonoAOT:false, MonoInterpreter:true, RunKind:micro_mono


### Regressions in System.Tests.Perf_DateTime

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToString - 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_RunKind=micro_mono/System.Tests.Perf_DateTime.ToString(format%3a%20%22G%22).html>) | 2.14 μs | 2.63 μs | 1.23 | 0.03 | False | | |
[ToString - 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_RunKind=micro_mono/System.Tests.Perf_DateTime.ToString(format%3a%20%22r%22).html>) | 384.94 ns | 423.90 ns | 1.10 | 0.08 | False | | |
[ToString - 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_RunKind=micro_mono/System.Tests.Perf_DateTime.ToString(format%3a%20null).html>) | 2.18 μs | 2.65 μs | 1.21 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Tests.Perf_DateTime_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Tests.Perf_DateTime_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Tests.Perf_DateTime_3.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_11_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_RunKind=micro_mono_Regression/System.Tests.Perf_DateTime.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-bf470d94-acf1-4eac-a2d2-bbe5a0b14345daf2c444bd74ae780/817adaab-e45d-4039-b0b5-0607d31f0e8b.zip?sv=2021-08-06&se=2023-05-09T02%3A16%3A09Z&sr=c&sp=rl&sig=GrKe%2BEMmzZmLXJL%2FqcK9eTeOymBz1TpjH4bKYZAPaWY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ec4f5a9c-dd48-49ba-bd94-8752c3e06f577e5439716f94e3197/76a84ebb-0998-4eb2-b946-d6ad0952ff82.zip?sv=2021-08-06&se=2023-05-09T15%3A22%3A44Z&sr=c&sp=rl&sig=IsDv1OiJ5KZi6MIV4k312PcUDpEMpB3DXdNeGoQPWeA%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.Tests.Perf_DateTime*' --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.Tests.Perf_DateTime*' --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.Tests.Perf_DateTime*' --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.Tests.Perf_DateTime*' --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-bf470d94-acf1-4eac-a2d2-bbe5a0b14345daf2c444bd74ae780/817adaab-e45d-4039-b0b5-0607d31f0e8b.zip?sv=2021-08-06&se=2023-05-09T02%3A16%3A09Z&sr=c&sp=rl&sig=GrKe%2BEMmzZmLXJL%2FqcK9eTeOymBz1TpjH4bKYZAPaWY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ec4f5a9c-dd48-49ba-bd94-8752c3e06f577e5439716f94e3197/76a84ebb-0998-4eb2-b946-d6ad0952ff82.zip?sv=2021-08-06&se=2023-05-09T15%3A22%3A44Z&sr=c&sp=rl&sig=IsDv1OiJ5KZi6MIV4k312PcUDpEMpB3DXdNeGoQPWeA%3D>)
### Histogram

#### System.Tests.Perf_DateTime.ToString(format: "G")

```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 2.631675734133694 > 2.2569979863469505.
IsChangePoint: Marked as a change because one of 3/16/2023 9:46:36 PM, 4/9/2023 4:09:45 AM, 4/11/2023 1:13:25 AM falls between 4/1/2023 8:54:51 PM and 4/11/2023 1:13:25 AM.
IsRegressionStdDev: Marked as regression because -36.50691945650365 (T) = (0 -2665.2562441412624) / Math.Sqrt((1070.7285499464701 / (56)) + (1040.3412731200021 / (6))) is less than -2.0002978220134566 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (56) + (6) - 2, .025) and -0.2346410472346939 = (2158.7296567782278 - 2665.2562441412624) / 2158.7296567782278 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_DateTime.ToString(format: "r")

```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 423.898195862676 > 408.3620390238834.
IsChangePoint: Marked as a change because one of 3/16/2023 9:46:36 PM, 4/9/2023 4:09:45 AM, 4/11/2023 1:13:25 AM falls between 4/1/2023 8:54:51 PM and 4/11/2023 1:13:25 AM.
IsRegressionStdDev: Marked as regression because -16.94419629508023 (T) = (0 -428.12779547821117) / Math.Sqrt((54.499868542477145 / (56)) + (23.71170696371344 / (7))) is less than -1.9996235849941724 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (56) + (7) - 2, .025) and -0.09009144180638601 = (392.74484603673466 - 428.12779547821117) / 392.74484603673466 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_DateTime.ToString(format: null)

```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 2.6502301733780764 > 2.2787128003260295.
IsChangePoint: Marked as a change because one of 3/16/2023 9:46:36 PM, 4/9/2023 4:09:45 AM, 4/11/2023 1:13:25 AM falls between 4/1/2023 8:54:51 PM and 4/11/2023 1:13:25 AM.
IsRegressionStdDev: Marked as regression because -36.71403520828566 (T) = (0 -2687.209925908866) / Math.Sqrt((1104.976433632076 / (56)) + (1241.3289402775777 / (7))) is less than -1.9996235849941724 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (56) + (7) - 2, .025) and -0.23730805754286857 = (2171.819628529141 - 2687.209925908866) / 2171.819628529141 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>

Name	Value
Architecture	x64
OS	ubuntu 18.04
Queue	TigerUbuntu
Baseline	1411364699b5784040e86f76cb3db8200f6a2c8c
Compare	86b48d7c6f081c12dcc9c048fb53de1b78c9966f
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:false, MonoInterpreter:true, RunKind:micro_mono

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ToString - Duration of single invocation	509.32 ns	577.61 ns	1.13	0.05	False
ToString - Duration of single invocation	2.31 μs	2.86 μs	1.24	0.04	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ToString - Duration of single invocation	2.01 μs	2.38 μs	1.18	0.02	False
ToString - Duration of single invocation	1.99 μs	2.45 μs	1.23	0.02	False
ToString - Duration of single invocation	1.98 μs	2.30 μs	1.16	0.01	False
ToString - Duration of single invocation	1.90 μs	2.48 μs	1.31	0.03	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ToString - Duration of single invocation	2.14 μs	2.63 μs	1.23	0.03	False
ToString - Duration of single invocation	384.94 ns	423.90 ns	1.10	0.08	False
ToString - Duration of single invocation	2.18 μs	2.65 μs	1.21	0.03	False

[Perf] Linux/x64: 9 Regressions on 4/9/2023 11:24:15 AM #15724

Description

Run Information

Regressions in System.Tests.Perf_DateTimeOffset

Repro

Payloads

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

Payloads

Histogram

System.Tests.Perf_DateTimeOffset.ToString(format: "r")

Description of detection logic

System.Tests.Perf_DateTimeOffset.ToString(format: "G")

Description of detection logic

Docs

Run Information

Regressions in System.Globalization.Tests.Perf_DateTimeCultureInfo

Repro

Payloads

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

Payloads

Histogram

System.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring: fr)

Description of detection logic

System.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring: )

Description of detection logic

System.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring: da)

Description of detection logic

System.Globalization.Tests.Perf_DateTimeCultureInfo.ToString(culturestring: ja)

Description of detection logic

Docs

Run Information

Regressions in System.Tests.Perf_DateTime

Repro

Payloads

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

Payloads

Histogram

System.Tests.Perf_DateTime.ToString(format: "G")

Description of detection logic

System.Tests.Perf_DateTime.ToString(format: "r")

Description of detection logic

System.Tests.Perf_DateTime.ToString(format: null)

Description of detection logic

Docs

Metadata

Metadata

Assignees

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Type

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Development

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