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[Perf] Windows/x64: 45 Regressions on 4/21/2025 10:30:40 PM +00:00 #54604

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@performanceautofiler

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@performanceautofiler

Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Perf_Ascii

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
10.48 ns 13.57 ns 1.30 0.04 False
10.45 ns 13.61 ns 1.30 0.03 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.Text.Perf_Ascii*'

System.Text.Perf_Ascii.EqualsIgnoreCase_DifferentCase_Bytes_Chars(Size: 6)

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System.Text.Perf_Ascii.EqualsIgnoreCase_DifferentCase_Bytes(Size: 6)

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Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
10.35 ns 11.39 ns 1.10 0.17 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.Tensors.Tests.Perf_NumberTensorPrimitives&lt;Int32&gt;*'

System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives<Int32>.Max(BufferLength: 128)

ETL Files

Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in PerfLabTests.CastingPerf

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
312.70 μs 351.70 μs 1.12 0.01 False
267.20 μs 312.44 μs 1.17 0.05 False
312.78 μs 352.13 μs 1.13 0.00 False

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 'PerfLabTests.CastingPerf*'

PerfLabTests.CastingPerf.ObjrefValueTypeObj

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PerfLabTests.CastingPerf.FooObjIsFoo2

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PerfLabTests.CastingPerf.ScalarValueTypeObj

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Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Linq.Tests.Perf_Enumerable

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
387.30 ns 419.49 ns 1.08 0.11 False
344.64 ns 381.00 ns 1.11 0.04 False
174.72 ns 185.28 ns 1.06 0.00 False

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.Linq.Tests.Perf_Enumerable*'

System.Linq.Tests.Perf_Enumerable.Where(input: IEnumerable)

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System.Linq.Tests.Perf_Enumerable.SelectToList(input: IEnumerable)

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System.Linq.Tests.Perf_Enumerable.Repeat

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JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsFalse<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
789.45 μs 862.71 μs 1.09 0.02 False
787.37 μs 861.67 μs 1.09 0.02 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.Collections.ContainsFalse&lt;String&gt;*'

System.Collections.ContainsFalse<String>.Array(Size: 512)

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JIT Disasms

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

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Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in LinqBenchmarks

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
156.49 ms 182.15 ms 1.16 0.07 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 'LinqBenchmarks*'

LinqBenchmarks.Where00ForX

ETL Files

Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Buffers.Binary.Tests.BinaryReadAndWriteTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
888.58 ns 941.80 ns 1.06 0.02 False
855.35 ns 941.56 ns 1.10 0.02 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.Buffers.Binary.Tests.BinaryReadAndWriteTests*'

System.Buffers.Binary.Tests.BinaryReadAndWriteTests.MeasureReverseEndianness

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System.Buffers.Binary.Tests.BinaryReadAndWriteTests.MeasureReverseUsingNtoH

ETL Files

Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.CtorFromCollection<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
4.42 μs 4.81 μs 1.09 0.07 False
3.19 μs 3.52 μs 1.10 0.08 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.Collections.CtorFromCollection&lt;String&gt;*'

System.Collections.CtorFromCollection<String>.ConcurrentStack(Size: 512)

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System.Collections.CtorFromCollection<String>.ImmutableQueue(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Int16

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
15.14 ns 16.91 ns 1.12 0.01 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.Tests.Perf_Int16*'

System.Tests.Perf_Int16.ToString(value: -32768)

ETL Files

Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Security.Cryptography.X509Certificates.Tests.X509Certificate2Tests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
22.97 ns 24.90 ns 1.08 0.21 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.Security.Cryptography.X509Certificates.Tests.X509Certificate2Tests*'

System.Security.Cryptography.X509Certificates.Tests.X509Certificate2Tests.CertProp

ETL Files

Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.TryGetValueTrue<SmallClass, SmallClass>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
5.53 μs 6.16 μs 1.11 0.14 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.Collections.TryGetValueTrue&lt;SmallClass, SmallClass&gt;*'

System.Collections.TryGetValueTrue<SmallClass, SmallClass>.ConcurrentDictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

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

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
52.28 ns 58.93 ns 1.13 0.18 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;SByte&gt;*'

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<SByte>.GetHashCodeBenchmark

ETL Files

Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline d9c4c3e73dcf09435a3cc1cabb23584c9f24b504
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.CreateAddAndClear<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
2.62 μs 2.91 μs 1.11 0.16 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.Collections.CreateAddAndClear&lt;String&gt;*'

System.Collections.CreateAddAndClear<String>.List(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
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
22.53 ns 25.87 ns 1.15 0.21 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;UInt16&gt;*'

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

ETL Files

Histogram

JIT Disasms

Docs

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


Run Information

Name Value
Architecture x64
OS Windows 10.0.22621
Queue TigerWindows
Baseline c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare 62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.IterateForEachNonGeneric<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
2.27 μs 2.59 μs 1.14 0.02 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.Collections.IterateForEachNonGeneric&lt;Int32&gt;*'

System.Collections.IterateForEachNonGeneric<Int32>.Queue(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

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

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