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[Perf] Windows/arm64: 14 Regressions on 7/25/2025 12:21:49 PM +00:00 #118242

@performanceautofiler

Description

@performanceautofiler

Run Information

Name Value
Architecture arm64
OS Windows 10.0.22621
Queue AmpereWindows
Baseline 988fde50337fc943b6772a15036be9895345573c
Compare 09aa370dea075acf0b917b63bd41ebf4b92c1269
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Memory.Span<Byte>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
18.57 ns 29.65 ns 1.60 0.73 False
3.57 ns 5.94 ns 1.66 0.71 False
2.09 ns 3.81 ns 1.83 0.75 False
10.35 ns 13.77 ns 1.33 0.64 False

graph
graph
graph
graph
Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Byte&gt;*'

System.Memory.Span<Byte>.Reverse(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Byte>.IndexOfValue(Size: 33)

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Histogram

JIT Disasms

System.Memory.Span<Byte>.IndexOfValue(Size: 4)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Byte>.IndexOfAnyFiveValues(Size: 33)

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository


Run Information

Name Value
Architecture arm64
OS Windows 10.0.22621
Queue AmpereWindows
Baseline 988fde50337fc943b6772a15036be9895345573c
Compare 09aa370dea075acf0b917b63bd41ebf4b92c1269
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
0.00 ns 1.02 ns 0.89 False
0.00 ns 1.17 ns 0.90 False

graph
graph
Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Runtime.Intrinsics.Tests.Perf_Vector128Of&lt;Int32&gt;*'

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Int32>.LessThanAnyBenchmark

ETL Files

Histogram

JIT Disasms

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Int32>.LessThanAllBenchmark

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository


Run Information

Name Value
Architecture arm64
OS Windows 10.0.22621
Queue AmpereWindows
Baseline 988fde50337fc943b6772a15036be9895345573c
Compare 09aa370dea075acf0b917b63bd41ebf4b92c1269
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Of<UInt16>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
0.14 ns 1.32 ns 9.49 0.91 False
0.00 ns 1.18 ns 0.91 False

graph
graph
Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Runtime.Intrinsics.Tests.Perf_Vector128Of&lt;UInt16&gt;*'

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<UInt16>.EqualsAllBenchmark

ETL Files

Histogram

JIT Disasms

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<UInt16>.EqualsAnyBenchmark

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository


Run Information

Name Value
Architecture arm64
OS Windows 10.0.22621
Queue AmpereWindows
Baseline 988fde50337fc943b6772a15036be9895345573c
Compare 09aa370dea075acf0b917b63bd41ebf4b92c1269
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Numerics.Tests.Perf_VectorOf<UInt16>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
0.01 ns 1.10 ns 83.19 0.92 False
0.41 ns 1.71 ns 4.21 0.92 False

graph
graph
Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tests.Perf_VectorOf&lt;UInt16&gt;*'

System.Numerics.Tests.Perf_VectorOf<UInt16>.GreaterThanOrEqualAnyBenchmark

ETL Files

Histogram

JIT Disasms

System.Numerics.Tests.Perf_VectorOf<UInt16>.GreaterThanOrEqualAllBenchmark

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository


Run Information

Name Value
Architecture arm64
OS Windows 10.0.22621
Queue AmpereWindows
Baseline 988fde50337fc943b6772a15036be9895345573c
Compare 09aa370dea075acf0b917b63bd41ebf4b92c1269
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Numerics.Tests.Perf_VectorOf<Single>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
0.00 ns 1.02 ns 0.91 False

graph
Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tests.Perf_VectorOf&lt;Single&gt;*'

System.Numerics.Tests.Perf_VectorOf<Single>.GreaterThanOrEqualAnyBenchmark

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository


Run Information

Name Value
Architecture arm64
OS Windows 10.0.22621
Queue AmpereWindows
Baseline 988fde50337fc943b6772a15036be9895345573c
Compare 09aa370dea075acf0b917b63bd41ebf4b92c1269
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Single>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
0.00 ns 1.07 ns 0.91 False

graph
Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Runtime.Intrinsics.Tests.Perf_Vector128Of&lt;Single&gt;*'

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Single>.EqualsAnyBenchmark

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository


Run Information

Name Value
Architecture arm64
OS Windows 10.0.22621
Queue AmpereWindows
Baseline 988fde50337fc943b6772a15036be9895345573c
Compare 09aa370dea075acf0b917b63bd41ebf4b92c1269
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Buffers.Tests.SearchValuesByteTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
30.47 ns 40.86 ns 1.34 0.72 False

graph
Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.SearchValuesByteTests*'

System.Buffers.Tests.SearchValuesByteTests.IndexOfAnyExcept(Values: "abcdefABCDEF0123456789Ü")

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository


Run Information

Name Value
Architecture arm64
OS Windows 10.0.22621
Queue AmpereWindows
Baseline 988fde50337fc943b6772a15036be9895345573c
Compare 09aa370dea075acf0b917b63bd41ebf4b92c1269
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.IO.Hashing.Tests.Crc32_AppendPerf

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
6.23 ns 10.37 ns 1.66 0.80 False

graph
Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Hashing.Tests.Crc32_AppendPerf*'

System.IO.Hashing.Tests.Crc32_AppendPerf.Append(BufferSize: 16)

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

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arch-arm64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIos-windowsruntime-coreclrspecific to the CoreCLR runtime

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