[Perf] Linux/x64: 19 Improvements on 8/22/2024 10:41:01 AM

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2af0051c894aac4d1a9d6479ad6dd7547a688363](https://github.com/dotnet/runtime/commit/2af0051c894aac4d1a9d6479ad6dd7547a688363)
Compare | [8db3cab69e3afe8c25d295edb8b1d599518e4eca](https://github.com/dotnet/runtime/commit/8db3cab69e3afe8c25d295edb8b1d599518e4eca)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2af0051c894aac4d1a9d6479ad6dd7547a688363...8db3cab69e3afe8c25d295edb8b1d599518e4eca)
Configs | CompilationMode:tiered, LLVM:false, MonoAOT:false, MonoInterpreter:false, RunKind:micro_mono


### Improvements in System.Memory.Span&lt;Char&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[StartsWith - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).StartsWith(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L61-#L62>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 64.82 ns | 56.12 ns | 0.87 | 0.02 | False | | |
|<ul><li>[Clear - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).Clear(Size%3a%204).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L40-#L41>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 23.84 ns | 7.61 ns | 0.32 | 0.02 | True | | |
|<ul><li>[SequenceEqual - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).SequenceEqual(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L52-#L53>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 125.16 ns | 89.01 ns | 0.71 | 0.02 | False | | |
|<ul><li>[ToArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).ToArray(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L49-#L50>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 95.53 ns | 30.15 ns | 0.32 | 0.01 | True | | |
|<ul><li>[LastIndexOfValue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).LastIndexOfValue(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L93-#L94>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 76.69 ns | 54.60 ns | 0.71 | 0.06 | False | | |
|<ul><li>[Clear - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).Clear(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L40-#L41>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.24 μs | 38.15 ns | 0.03 | 0.01 | True | | |
|<ul><li>[Clear - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).Clear(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L40-#L41>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 111.39 ns | 14.50 ns | 0.13 | 0.01 | True | | |
|<ul><li>[EndsWith - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).EndsWith(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L64-#L65>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 69.70 ns | 58.65 ns | 0.84 | 0.03 | False | | |
|<ul><li>[ToArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Char).ToArray(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L49-#L50>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.23 μs | 209.51 ns | 0.17 | 0.01 | True | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Char%29_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Char%29_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Char%29_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Char%29_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Char%29_5.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Char%29_6.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Char%29_7.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Char%29_8.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Char%29_9.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Char%29.html>)

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

<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

# 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.Memory.Span&lt;Char&gt;*' --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.Memory.Span&lt;Char&gt;*' --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

# 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.Memory.Span&lt;Char&gt;*' --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.Memory.Span&lt;Char&gt;*' --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>

### System.Memory.Span&lt;Char&gt;.StartsWith(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.Clear(Size: 4)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.SequenceEqual(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.ToArray(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.LastIndexOfValue(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.Clear(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.Clear(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.EndsWith(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.ToArray(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2af0051c894aac4d1a9d6479ad6dd7547a688363](https://github.com/dotnet/runtime/commit/2af0051c894aac4d1a9d6479ad6dd7547a688363)
Compare | [8db3cab69e3afe8c25d295edb8b1d599518e4eca](https://github.com/dotnet/runtime/commit/8db3cab69e3afe8c25d295edb8b1d599518e4eca)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2af0051c894aac4d1a9d6479ad6dd7547a688363...8db3cab69e3afe8c25d295edb8b1d599518e4eca)
Configs | CompilationMode:tiered, LLVM:false, MonoAOT:false, MonoInterpreter:false, RunKind:micro_mono


### Improvements in System.Memory.Span&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SequenceEqual - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Int32).SequenceEqual(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L52-#L53>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 237.63 ns | 167.01 ns | 0.70 | 0.02 | False | | |
|<ul><li>[Clear - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Int32).Clear(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L40-#L41>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACpWU227TQBCG7yvxDqve2AY3cZO2tBGuSNMChQZKEnGDULWxJ/GiPViz6zauEM/O2I5Cm0rF3CSe0f/N7M5hx8BtgaBAO7vzi91lgMDOCiHTCeSGxTHzUuM0uC4W2gkF3mPVGXKdZLUOYWG7GfDUdhUXeks4xCQTDhJH2ZjQzPdWRwdeyDyOij6CjXoG1n3mCqqYb71paR2ozhiUwbIzzbl+c6ldv3faGUng6E/FPQzY4X4v+JtvUuiR0QuxLJA7YbT97o2MyoWsrbFJwfvB4t/Mc4Lkqfdip9tlz8BXV9/Ga2LBpYV/AmOjzfDL7L8ZuhlgjkC/W+wzILk+CZ2uASUSNDeKgj2ghAWVu9J/Qg+NC1rILo29kreq7mMb/Ud7oZdCQxvt9dLMyrydNCutSLi8RqNM5WkLfijnKNL30sy5FPe1rw026U3aZrhY5YC0Hboe3cfDPDK0OYAzk6+/Hi/GjLCp4ypnpyzlDqol83tR72AvOtrrvZ5FJ4P+8SA67vRPov3Do5NXUTSIoioFrBzolE0pM9jYOky489+RoVNZfi2ggOow1WFrIwiZWCx8Z+bGyKdXqIeW5iFku3s0vLv0v9sCeTCzNdrYbehqpGqk2q8GqG5lC6U40lozjssbxVd+XabqKiF7GbB5uVW3cPNkhOtaUJQczU96bJ5IJ2AL6WKkTqT+g+40/uEtIF9SnD4dbBMLqaCArGpMknF07E64jPm2qXsjC9kqMbJQOt7OWDZ+GzcpSOiEkxB759RsegDLtVkhzNc28II/+qnmv5UFAAA=>)</li></ul> | 41.44 ns | 25.99 ns | 0.63 | 0.07 | True | | |
|<ul><li>[Clear - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Int32).Clear(Size%3a%204).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L40-#L41>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 23.83 ns | 7.51 ns | 0.32 | 0.01 | True | | |
|<ul><li>[EndsWith - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Int32).EndsWith(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L64-#L65>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 130.04 ns | 100.26 ns | 0.77 | 0.02 | False | | |
|<ul><li>[ToArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Int32).ToArray(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L49-#L50>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 165.25 ns | 37.03 ns | 0.22 | 0.02 | True | | |
|<ul><li>[StartsWith - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Int32).StartsWith(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L61-#L62>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 125.53 ns | 94.85 ns | 0.76 | 0.02 | False | | |
|<ul><li>[IndexOfAnyFourValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Int32).IndexOfAnyFourValues(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L87-#L88>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACpWU207bQBCG75H6DitubLcmsRKUlKhGDRRaWlJoEnFTVWhjT+Kt9mDNriFGVZ+9YztKIUjUvUk8o/+b2Z3DToDbAkGBdnbvF7vPAIGdFEKmU8gNi2PmpcZpcF0stBMKvKeqE+Q6yWodwtJ2M+Cp7Sou9I5wjEkmHCSOsjGhme+tB4deyDyOij6CrXoO1n3lCqqY771ZaR2ozgSUwbIzy7l+d6Fdv3fcudAprK+WY12emwJvuCzA+jPxACPW7wd/s08LfWr0UqwK5E4Ybb97p0blQtbWxKTg/WDxb+Y5QfLUe7XX7bIX4MvLm8mGWHJp4Z/AxGgzvpr/N0P3BMwR6HeHfQEk1xeh0w2gRILmVlGwR5SwoHJX+s/osXFBC9mFsZfyTtVdbaP/bM/0Smhoo71emXmZt5NmpRUJl9dolKk8bcFP5QJF+lGaBZfiofa1waa9adsMZ+sckHZF14P8dLRPDe0R4Nzkm6+nazInbOa4ytkxS7mDauX8XtQ7PIgGB73hPDoa9d+OoqNONIwG0bD/JopGUVSlgLUDnbIZZQYbW4cJd/45GTqV5bcCCqgOUx22NoKQieXSd2ZhjHx+hXpoaR5Ctn9Aw7tP//stkEczW6ON3YauRqpGqv1qgOpWtlCKI20147i6VXzt12WqrhKy1wFblDt1C7cPSLipBUXJ0fykp+eZdAq2kC5G6kTqP+pO4x/fAfIVxenTwbaxkAoKyKrGJBlHx+6Fy5hvm7o3spCtEyMLpePdjGXjt3GTgoROOAmx94GaTc9huTErhPnaBl7wB8oAmF2jBQAA>)</li></ul> | 146.85 ns | 115.12 ns | 0.78 | 0.05 | False | | |
|<ul><li>[ToArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Int32).ToArray(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L49-#L50>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 2.34 μs | 307.18 ns | 0.13 | 0.02 | True | | |
|<ul><li>[Clear - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Memory.Span(Int32).Clear(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L40-#L41>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 187.37 ns | 14.74 ns | 0.08 | 0.00 | True | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Int32%29_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Int32%29_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Int32%29_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Int32%29_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Int32%29_5.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Int32%29_6.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Int32%29_7.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Int32%29_8.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Int32%29_9.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Memory.Span%28Int32%29.html>)

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

<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

# 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.Memory.Span&lt;Int32&gt;*' --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.Memory.Span&lt;Int32&gt;*' --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

# 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.Memory.Span&lt;Int32&gt;*' --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.Memory.Span&lt;Int32&gt;*' --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>

### System.Memory.Span&lt;Int32&gt;.SequenceEqual(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.Clear(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.Clear(Size: 4)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.EndsWith(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.ToArray(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.StartsWith(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.IndexOfAnyFourValues(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.ToArray(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.Clear(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2af0051c894aac4d1a9d6479ad6dd7547a688363](https://github.com/dotnet/runtime/commit/2af0051c894aac4d1a9d6479ad6dd7547a688363)
Compare | [8db3cab69e3afe8c25d295edb8b1d599518e4eca](https://github.com/dotnet/runtime/commit/8db3cab69e3afe8c25d295edb8b1d599518e4eca)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2af0051c894aac4d1a9d6479ad6dd7547a688363...8db3cab69e3afe8c25d295edb8b1d599518e4eca)
Configs | CompilationMode:tiered, LLVM:false, MonoAOT:false, MonoInterpreter:false, RunKind:micro_mono


### Improvements in System.Text.Perf_Utf8Encoding

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetBytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=false_MonoAOT=false_MonoInterpreter=false_RunKind=micro_mono/System.Text.Perf_Utf8Encoding.GetBytes(Input%3a%20Chinese).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Utf8Encoding.cs#L30-#L31>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 329.17 μs | 303.71 μs | 0.92 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Text.Perf_Utf8Encoding_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_27_2024/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dfalse_MonoAOT%3Dfalse_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Improvement/System.Text.Perf_Utf8Encoding.html>)

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

<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

# 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.Text.Perf_Utf8Encoding*' --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.Text.Perf_Utf8Encoding*' --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

# 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.Text.Perf_Utf8Encoding*' --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.Text.Perf_Utf8Encoding*' --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>

### System.Text.Perf_Utf8Encoding.GetBytes(Input: Chinese)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	2af0051c894aac4d1a9d6479ad6dd7547a688363
Compare	8db3cab69e3afe8c25d295edb8b1d599518e4eca
Diff	Diff
Configs	CompilationMode:tiered, LLVM:false, MonoAOT:false, MonoInterpreter:false, RunKind:micro_mono

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
StartsWith - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	64.82 ns	56.12 ns	0.87	0.02	False
Clear - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	23.84 ns	7.61 ns	0.32	0.02	True
SequenceEqual - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	125.16 ns	89.01 ns	0.71	0.02	False
ToArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	95.53 ns	30.15 ns	0.32	0.01	True
LastIndexOfValue - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	76.69 ns	54.60 ns	0.71	0.06	False
Clear - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.24 μs	38.15 ns	0.03	0.01	True
Clear - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	111.39 ns	14.50 ns	0.13	0.01	True
EndsWith - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	69.70 ns	58.65 ns	0.84	0.03	False
ToArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.23 μs	209.51 ns	0.17	0.01	True

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
SequenceEqual - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	237.63 ns	167.01 ns	0.70	0.02	False
Clear - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	41.44 ns	25.99 ns	0.63	0.07	True
Clear - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	23.83 ns	7.51 ns	0.32	0.01	True
EndsWith - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	130.04 ns	100.26 ns	0.77	0.02	False
ToArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	165.25 ns	37.03 ns	0.22	0.02	True
StartsWith - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	125.53 ns	94.85 ns	0.76	0.02	False
IndexOfAnyFourValues - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	146.85 ns	115.12 ns	0.78	0.05	False
ToArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	2.34 μs	307.18 ns	0.13	0.02	True
Clear - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	187.37 ns	14.74 ns	0.08	0.00	True

[Perf] Linux/x64: 19 Improvements on 8/22/2024 10:41:01 AM #40342

Description

Run Information

Improvements in System.Memory.Span<Char>

Repro

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

System.Memory.Span<Char>.StartsWith(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Char>.Clear(Size: 4)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Char>.SequenceEqual(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Char>.ToArray(Size: 33)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Char>.LastIndexOfValue(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Char>.Clear(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Char>.Clear(Size: 33)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Char>.EndsWith(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Char>.ToArray(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Improvements in System.Memory.Span<Int32>

Repro

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

System.Memory.Span<Int32>.SequenceEqual(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.Clear(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.Clear(Size: 4)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.EndsWith(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.ToArray(Size: 33)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.StartsWith(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.IndexOfAnyFourValues(Size: 33)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.ToArray(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.Clear(Size: 33)