[Perf] Linux/x64: 33 Regressions on 11/21/2023 11:46:43 PM

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [3b61ad9e3acb6302fd2fcef4947373475a0dcc29](https://github.com/dotnet/runtime/commit/3b61ad9e3acb6302fd2fcef4947373475a0dcc29)
Compare | [91e3b3ec7da4c7c64308338680b6d9496e812b2d](https://github.com/dotnet/runtime/commit/91e3b3ec7da4c7c64308338680b6d9496e812b2d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/3b61ad9e3acb6302fd2fcef4947373475a0dcc29...91e3b3ec7da4c7c64308338680b6d9496e812b2d)
Configs | CompilationMode:tiered, LLVM:true, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono


### Regressions in System.Collections.IndexerSet&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Collections.IndexerSet(String).Span(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Indexer/IndexerSet.cs#L44-#L53>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 157.45 ns | 238.58 ns | 1.52 | 0.11 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Collections.IndexerSet%28String%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Collections.IndexerSet%28String%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 (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order))
- 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 $RunArch -framework net8.0`
- AOT MONO build extracted to `runtime/artifacts/bin/mono/$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 /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false`
- 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 aot directory 
mkdir -p $RunDir/artifacts/bin/aot/sgen
mkdir -p $RunDir/artifacts/bin/aot/pack
cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen
cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack

# 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.Collections.IndexerSet&lt;String&gt;*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime  --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog"

# 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.Collections.IndexerSet&lt;String&gt;* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200
```

Windows
```cmd
# Set $RunDir to the runtime directory
$RunDir="FullPathHere"

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

# Create aot directory
mkdir $RunDir\artifacts\bin\aot\sgen
mkdir $RunDir\artifacts\bin\aot\pack
xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y
xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /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.Collections.IndexerSet&lt;String&gt;*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime  --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog"

# 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.Collections.IndexerSet&lt;String&gt;* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200
```

</details>

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1ad9756c-a881-4cf9-84f1-2b36c6ce43f83a10316aea745499e/c6abbe7d-4842-47ed-977a-90f256ff9837.zip?sv=2021-08-06&se=2023-12-21T11%3A50%3A23Z&sr=c&sp=rl&sig=AmVSIRAv7DfcpwOGDVyMNuDbjeixFf8T%2BvGagHUdjJQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c57b3cab-0d90-46db-9105-c34ce2ccbd5ff13c1fa8fb34eb6a2/ed8d07bc-a825-4032-ba0d-ef0a4e59cd77.zip?sv=2021-08-06&se=2023-12-22T08%3A24%3A36Z&sr=c&sp=rl&sig=CnE7HKWRZlCM2A%2Bg32J%2BoCISGV0z9vdFfwiSKNBMLMY%3D>)
### System.Collections.IndexerSet&lt;String&gt;.Span(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 | [3b61ad9e3acb6302fd2fcef4947373475a0dcc29](https://github.com/dotnet/runtime/commit/3b61ad9e3acb6302fd2fcef4947373475a0dcc29)
Compare | [91e3b3ec7da4c7c64308338680b6d9496e812b2d](https://github.com/dotnet/runtime/commit/91e3b3ec7da4c7c64308338680b6d9496e812b2d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/3b61ad9e3acb6302fd2fcef4947373475a0dcc29...91e3b3ec7da4c7c64308338680b6d9496e812b2d)
Configs | CompilationMode:tiered, LLVM:true, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono


### Regressions in System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[FixedTimeEquals_256Bit_AllBitsDifferent - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_AllBitsDifferent.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Security.Cryptography.Primitives/Perf.FixedTimeEquals.cs#L58-#L59>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 30.78 ns | 39.06 ns | 1.27 | 0.04 | False | | |
|<ul><li>[FixedTimeEquals_256Bit_FirstBitDifferent - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_FirstBitDifferent.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Security.Cryptography.Primitives/Perf.FixedTimeEquals.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> | 29.48 ns | 38.31 ns | 1.30 | 0.03 | False | | |
|<ul><li>[FixedTimeEquals_256Bit_SameReference - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_SameReference.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Security.Cryptography.Primitives/Perf.FixedTimeEquals.cs#L74-#L75>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 27.46 ns | 37.63 ns | 1.37 | 0.05 | False | | |
|<ul><li>[FixedTimeEquals_256Bit_Equal - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_Equal.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Security.Cryptography.Primitives/Perf.FixedTimeEquals.cs#L22-#L23>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 29.74 ns | 39.75 ns | 1.34 | 0.03 | False | | |
|<ul><li>[FixedTimeEquals_256Bit_CascadingErrors - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_CascadingErrors.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Security.Cryptography.Primitives/Perf.FixedTimeEquals.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> | 30.40 ns | 39.08 ns | 1.29 | 0.04 | False | | |
|<ul><li>[FixedTimeEquals_256Bit_VersusZero - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_VersusZero.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Security.Cryptography.Primitives/Perf.FixedTimeEquals.cs#L67-#L68>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 30.30 ns | 39.61 ns | 1.31 | 0.03 | False | | |
|<ul><li>[FixedTimeEquals_256Bit_LastBitDifferent - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_LastBitDifferent.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Security.Cryptography.Primitives/Perf.FixedTimeEquals.cs#L31-#L32>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 31.22 ns | 40.11 ns | 1.28 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals_5.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals_6.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals_7.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.html>)

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

<details>
   <summary>Repro Steps</summary>


#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order))
- 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 $RunArch -framework net8.0`
- AOT MONO build extracted to `runtime/artifacts/bin/mono/$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 /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false`
- 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 aot directory 
mkdir -p $RunDir/artifacts/bin/aot/sgen
mkdir -p $RunDir/artifacts/bin/aot/pack
cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen
cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack

# 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.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime  --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog"

# 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.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200
```

Windows
```cmd
# Set $RunDir to the runtime directory
$RunDir="FullPathHere"

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

# Create aot directory
mkdir $RunDir\artifacts\bin\aot\sgen
mkdir $RunDir\artifacts\bin\aot\pack
xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y
xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /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.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime  --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog"

# 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.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200
```

</details>

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1ad9756c-a881-4cf9-84f1-2b36c6ce43f83a10316aea745499e/c6abbe7d-4842-47ed-977a-90f256ff9837.zip?sv=2021-08-06&se=2023-12-21T11%3A50%3A23Z&sr=c&sp=rl&sig=AmVSIRAv7DfcpwOGDVyMNuDbjeixFf8T%2BvGagHUdjJQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c57b3cab-0d90-46db-9105-c34ce2ccbd5ff13c1fa8fb34eb6a2/ed8d07bc-a825-4032-ba0d-ef0a4e59cd77.zip?sv=2021-08-06&se=2023-12-22T08%3A24%3A36Z&sr=c&sp=rl&sig=CnE7HKWRZlCM2A%2Bg32J%2BoCISGV0z9vdFfwiSKNBMLMY%3D>)
### System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_AllBitsDifferent

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_FirstBitDifferent

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_SameReference

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_Equal

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_CascadingErrors

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_VersusZero

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_LastBitDifferent

#### 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 | [3b61ad9e3acb6302fd2fcef4947373475a0dcc29](https://github.com/dotnet/runtime/commit/3b61ad9e3acb6302fd2fcef4947373475a0dcc29)
Compare | [91e3b3ec7da4c7c64308338680b6d9496e812b2d](https://github.com/dotnet/runtime/commit/91e3b3ec7da4c7c64308338680b6d9496e812b2d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/3b61ad9e3acb6302fd2fcef4947373475a0dcc29...91e3b3ec7da4c7c64308338680b6d9496e812b2d)
Configs | CompilationMode:tiered, LLVM:true, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono


### Regressions in System.Text.Encodings.Web.Tests.Perf_Encoders

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[EncodeUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments%3a%20JavaScript%2cno%20escaping%20required%2c16).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encodings.Web/Perf.Encoders.cs#L32-#L34>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACpWUX2/TMBTF35H4Dn5LAlmbdqOqKgXRlcI2VhhdgAeEKje5bYxiO9xrb82E+Ow4aSn7I43wEtknv3N87fhmBpwsggRl6MlPdp0DAju2osjmUGoWx8zLtFFgumiVERK8u9QxcpXmDYewom4OPKOu5ELdA8eY5sJAatxqTCjme5vBkRcyj6N0g2BPJ0DmPZdQZ77yLisyIDsJbExnqlKdCbWmzhdYOokMdS4AV4vmBSBtCfhkVr2Bz3Ftm22N2Bm/4pcpitKESjOglJcuhiH8sAIhC3uD4G+1c6smWq3E2iI3Qiv66k20LEXRzGYu3/vG4l/MM8Lhmff0Mef5+efZHxwtPA7PtNLjD8l/8afKAJYI7rnzrXhB/zA66Z1Q2c4gRYp6IV3YLZcgkKWp/AfusTZBC+xU03lxJZtP34Y/o6laCwVt2Iu1TqqyHZpXJFJeXKCWulbaGk+qJYrsbaGXvBA3jdbGNu/P264w3ZSArqFUc9vv3v+Jds0GmOhyN7rbS4mzXRouS/aSZdxA3Zd+P+ofHkTDg/4wiYajXm/UH3aOohfDQT96HkWjKKqXICslR3EDzLXHQvKN3wTWFYTsWcCW1b0Vwn0/hvVN+mjBgsspUX93vfwAngPZwsToqs78WzvZ6uMrQL52SYdByJqoOjh+gwJUVlR7pT6sZlKXjO4dIKv3mOYcDbsWJmc+ucMDiveekG1SXVip4vs1VVud4m0RDjTCFBB7r93RuT9QtZvWFuYrCmqNykKYmG+Agt99Z5/SIwUAAA==>)</li></ul> | 23.19 ns | 25.02 ns | 1.08 | 0.11 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders.html>)

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

<details>
   <summary>Repro Steps</summary>


#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order))
- 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 $RunArch -framework net8.0`
- AOT MONO build extracted to `runtime/artifacts/bin/mono/$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 /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false`
- 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 aot directory 
mkdir -p $RunDir/artifacts/bin/aot/sgen
mkdir -p $RunDir/artifacts/bin/aot/pack
cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen
cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack

# 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.Encodings.Web.Tests.Perf_Encoders*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime  --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog"

# 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.Encodings.Web.Tests.Perf_Encoders* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200
```

Windows
```cmd
# Set $RunDir to the runtime directory
$RunDir="FullPathHere"

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

# Create aot directory
mkdir $RunDir\artifacts\bin\aot\sgen
mkdir $RunDir\artifacts\bin\aot\pack
xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y
xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /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.Encodings.Web.Tests.Perf_Encoders*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime  --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog"

# 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.Encodings.Web.Tests.Perf_Encoders* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200
```

</details>

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1ad9756c-a881-4cf9-84f1-2b36c6ce43f83a10316aea745499e/c6abbe7d-4842-47ed-977a-90f256ff9837.zip?sv=2021-08-06&se=2023-12-21T11%3A50%3A23Z&sr=c&sp=rl&sig=AmVSIRAv7DfcpwOGDVyMNuDbjeixFf8T%2BvGagHUdjJQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c57b3cab-0d90-46db-9105-c34ce2ccbd5ff13c1fa8fb34eb6a2/ed8d07bc-a825-4032-ba0d-ef0a4e59cd77.zip?sv=2021-08-06&se=2023-12-22T08%3A24%3A36Z&sr=c&sp=rl&sig=CnE7HKWRZlCM2A%2Bg32J%2BoCISGV0z9vdFfwiSKNBMLMY%3D>)
### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: JavaScript,no escaping required,16)

#### 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 | [3b61ad9e3acb6302fd2fcef4947373475a0dcc29](https://github.com/dotnet/runtime/commit/3b61ad9e3acb6302fd2fcef4947373475a0dcc29)
Compare | [91e3b3ec7da4c7c64308338680b6d9496e812b2d](https://github.com/dotnet/runtime/commit/91e3b3ec7da4c7c64308338680b6d9496e812b2d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/3b61ad9e3acb6302fd2fcef4947373475a0dcc29...91e3b3ec7da4c7c64308338680b6d9496e812b2d)
Configs | CompilationMode:tiered, LLVM:true, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono


### Regressions in System.Numerics.Tests.Constructor

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SpanCastBenchmark_SByte - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Numerics.Tests.Constructor.SpanCastBenchmark_SByte.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Numerics.Vectors/GenericVectorConstructorTests.cs#L29-#L31>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 3.09 ns | 4.12 ns | 1.33 | 0.14 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Numerics.Tests.Constructor_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Numerics.Tests.Constructor.html>)

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

<details>
   <summary>Repro Steps</summary>


#### Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order))
- 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 $RunArch -framework net8.0`
- AOT MONO build extracted to `runtime/artifacts/bin/mono/$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 /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false`
- 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 aot directory 
mkdir -p $RunDir/artifacts/bin/aot/sgen
mkdir -p $RunDir/artifacts/bin/aot/pack
cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen
cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack

# 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.Numerics.Tests.Constructor*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime  --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog"

# Individual Commands:
# Restore 
dotnet restore $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --packages $RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1

# Build
dotnet build $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir/performance/artifacts/packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1

# Run
dotnet run --project $RunDir/performance/src/benchmarks/micro/MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Numerics.Tests.Constructor* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200
```

Windows
```cmd
# Set $RunDir to the runtime directory
$RunDir="FullPathHere"

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

# Create aot directory
mkdir $RunDir\artifacts\bin\aot\sgen
mkdir $RunDir\artifacts\bin\aot\pack
xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y
xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /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.Numerics.Tests.Constructor*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime  --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog"

# Individual Commands:
# Restore 
dotnet restore $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --packages $RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1

# Build
dotnet build $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore /p:NuGetPackageRoot=$RunDir\performance\artifacts\packages /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1

# Run
dotnet run --project $RunDir\performance\src\benchmarks\micro\MicroBenchmarks.csproj --configuration Release --framework net8.0 --no-restore --no-build -- --filter System.Numerics.Tests.Constructor* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200
```

</details>

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1ad9756c-a881-4cf9-84f1-2b36c6ce43f83a10316aea745499e/c6abbe7d-4842-47ed-977a-90f256ff9837.zip?sv=2021-08-06&se=2023-12-21T11%3A50%3A23Z&sr=c&sp=rl&sig=AmVSIRAv7DfcpwOGDVyMNuDbjeixFf8T%2BvGagHUdjJQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c57b3cab-0d90-46db-9105-c34ce2ccbd5ff13c1fa8fb34eb6a2/ed8d07bc-a825-4032-ba0d-ef0a4e59cd77.zip?sv=2021-08-06&se=2023-12-22T08%3A24%3A36Z&sr=c&sp=rl&sig=CnE7HKWRZlCM2A%2Bg32J%2BoCISGV0z9vdFfwiSKNBMLMY%3D>)
### System.Numerics.Tests.Constructor.SpanCastBenchmark_SByte

#### 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 | [3b61ad9e3acb6302fd2fcef4947373475a0dcc29](https://github.com/dotnet/runtime/commit/3b61ad9e3acb6302fd2fcef4947373475a0dcc29)
Compare | [91e3b3ec7da4c7c64308338680b6d9496e812b2d](https://github.com/dotnet/runtime/commit/91e3b3ec7da4c7c64308338680b6d9496e812b2d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/3b61ad9e3acb6302fd2fcef4947373475a0dcc29...91e3b3ec7da4c7c64308338680b6d9496e812b2d)
Configs | CompilationMode:tiered, LLVM:true, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono


### Regressions in System.Collections.IterateForEach&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ConcurrentBag - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_LLVM=true_MonoAOT=true_MonoInterpreter=false_RunKind=micro_mono/System.Collections.IterateForEach(Int32).ConcurrentBag(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateForEach.cs#L260-#L268>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 3.49 μs | 3.99 μs | 1.14 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Collections.IterateForEach%28Int32%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_28_2023/refs/heads/main_x64_ubuntu%2022.04_LLVM%3Dtrue_MonoAOT%3Dtrue_MonoInterpreter%3Dfalse_RunKind%3Dmicro_mono_Regression/System.Collections.IterateForEach%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 (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order))
- 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 $RunArch -framework net8.0`
- AOT MONO build extracted to `runtime/artifacts/bin/mono/$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 /p:CrossBuild=false /p:MonoLLVMUseCxx11Abi=false`
- 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 aot directory 
mkdir -p $RunDir/artifacts/bin/aot/sgen
mkdir -p $RunDir/artifacts/bin/aot/pack
cp -r $RunDir/artifacts/obj/mono/$RunOS.$RunArch.Release/mono/* $RunDir/artifacts/bin/aot/sgen
cp -r $RunDir/artifacts/bin/microsoft.netcore.app.runtime.$RunOS-$RunArch/Release/* $RunDir/artifacts/bin/aot/pack

# 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.Collections.IterateForEach&lt;Int32&gt;*' --bdn-artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime  --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog"

# 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.Collections.IterateForEach&lt;Int32&gt;* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir/artifacts/bin/aot/sgen/mini/mono-sgen --customruntimepack $RunDir/artifacts/bin/aot/pack --aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir/artifacts/BenchmarkDotNet.Artifacts --packages $RunDir/performance/artifacts/packages --buildTimeout 1200
```

Windows
```cmd
# Set $RunDir to the runtime directory
$RunDir="FullPathHere"

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

# Create aot directory
mkdir $RunDir\artifacts\bin\aot\sgen
mkdir $RunDir\artifacts\bin\aot\pack
xcopy $RunDir\artifacts\obj\mono\$RunOS.$RunArch.Release\mono $RunDir\artifacts\bin\aot\sgen\ /e /y
xcopy $RunDir\artifacts\bin\microsoft.netcore.app.runtime.$RunOSId-$RunArch\Release $RunDir\artifacts\bin\aot\pack\ /e /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.Collections.IterateForEach&lt;Int32&gt;*' --bdn-artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --bdn-arguments="--anyCategories Libraries Runtime  --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack --aotcompilermode llvm --logBuildOutput --generateBinLog"

# 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.Collections.IterateForEach&lt;Int32&gt;* --anyCategories Libraries Runtime " --category-exclusion-filter NoAOT NoWASM --runtimes monoaotllvm --aotcompilerpath $RunDir\artifacts\bin\aot\sgen\mini\mono-sgen.exe --customruntimepack $RunDir\artifacts\bin\aot\pack -aotcompilermode llvm --logBuildOutput --generateBinLog " --artifacts $RunDir\artifacts\BenchmarkDotNet.Artifacts --packages $RunDir\performance\artifacts\packages --buildTimeout 1200
```

</details>

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1ad9756c-a881-4cf9-84f1-2b36c6ce43f83a10316aea745499e/c6abbe7d-4842-47ed-977a-90f256ff9837.zip?sv=2021-08-06&se=2023-12-21T11%3A50%3A23Z&sr=c&sp=rl&sig=AmVSIRAv7DfcpwOGDVyMNuDbjeixFf8T%2BvGagHUdjJQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c57b3cab-0d90-46db-9105-c34ce2ccbd5ff13c1fa8fb34eb6a2/ed8d07bc-a825-4032-ba0d-ef0a4e59cd77.zip?sv=2021-08-06&se=2023-12-22T08%3A24%3A36Z&sr=c&sp=rl&sig=CnE7HKWRZlCM2A%2Bg32J%2BoCISGV0z9vdFfwiSKNBMLMY%3D>)
### System.Collections.IterateForEach&lt;Int32&gt;.ConcurrentBag(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>

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	3b61ad9e3acb6302fd2fcef4947373475a0dcc29
Compare	91e3b3ec7da4c7c64308338680b6d9496e812b2d
Diff	Diff
Configs	CompilationMode:tiered, LLVM:true, MonoAOT:true, MonoInterpreter:false, RunKind:micro_mono

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
FixedTimeEquals_256Bit_AllBitsDifferent - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	30.78 ns	39.06 ns	1.27	0.04	False
FixedTimeEquals_256Bit_FirstBitDifferent - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	29.48 ns	38.31 ns	1.30	0.03	False
FixedTimeEquals_256Bit_SameReference - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	27.46 ns	37.63 ns	1.37	0.05	False
FixedTimeEquals_256Bit_Equal - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	29.74 ns	39.75 ns	1.34	0.03	False
FixedTimeEquals_256Bit_CascadingErrors - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	30.40 ns	39.08 ns	1.29	0.04	False
FixedTimeEquals_256Bit_VersusZero - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	30.30 ns	39.61 ns	1.31	0.03	False
FixedTimeEquals_256Bit_LastBitDifferent - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	31.22 ns	40.11 ns	1.28	0.03	False

[Perf] Linux/x64: 33 Regressions on 11/21/2023 11:46:43 PM #25089

Description

Run Information

Regressions in System.Collections.IndexerSet<String>

Repro

Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order))

Payloads

System.Collections.IndexerSet<String>.Span(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals

Repro

Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order))

Payloads

System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_AllBitsDifferent

ETL Files

Histogram

JIT Disasms

System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_FirstBitDifferent

ETL Files

Histogram

JIT Disasms

System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_SameReference

ETL Files

Histogram

JIT Disasms

System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_Equal

ETL Files

Histogram

JIT Disasms

System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_CascadingErrors

ETL Files

Histogram

JIT Disasms

System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_VersusZero

ETL Files

Histogram

JIT Disasms

System.Security.Cryptography.Primitives.Tests.Performance.Perf_FixedTimeEquals.FixedTimeEquals_256Bit_LastBitDifferent

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Encodings.Web.Tests.Perf_Encoders

Repro

Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order))

Payloads

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: JavaScript,no escaping required,16)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Numerics.Tests.Constructor

Repro

Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order))

Payloads

System.Numerics.Tests.Constructor.SpanCastBenchmark_SByte

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.IterateForEach<Int32>

Repro

Prerequisites (Files either built locally (with build.(sh/cmd) or downloaded from payload above (if same system setup) (in this order))

Payloads

System.Collections.IterateForEach<Int32>.ConcurrentBag(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Metadata

Metadata

Assignees

Labels