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[Perf] Windows/arm64: 24 Improvements on 5/28/2025 8:41:49 PM +00:00 #56873

@performanceautofiler

Description

@performanceautofiler

Run Information

Name Value
Architecture arm64
OS Windows 10.0.22621
Queue SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.IO.Compression.Gzip

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
569.47 μs 507.91 μs 0.89 0.01 False
479.90 μs 402.84 μs 0.84 0.01 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.IO.Compression.Gzip*'

System.IO.Compression.Gzip.Decompress(level: Fastest, file: "alice29.txt")

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JIT Disasms

System.IO.Compression.Gzip.Decompress(level: Optimal, file: "alice29.txt")

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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 arm64
OS Windows 10.0.22621
Queue SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Tests.Perf_Type

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
1.45 μs 1.26 μs 0.87 0.09 False
1.46 μs 1.29 μs 0.88 0.05 False
1.58 μs 1.34 μs 0.85 0.12 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.Tests.Perf_Type*'

System.Tests.Perf_Type.GetType_NonFullyQualifiedNames(input: "System.Int32*")

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System.Tests.Perf_Type.GetType_NonFullyQualifiedNames(input: "System.Int32[,]")

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System.Tests.Perf_Type.GetType_FullyQualifiedNames(input: typeof(System.Int32[,]))

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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 SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Reflection.Activator<EmptyClass>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
17.82 ns 14.90 ns 0.84 0.15 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.Reflection.Activator&lt;EmptyClass&gt;*'

System.Reflection.Activator<EmptyClass>.CreateInstanceType

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 SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Collections.Tests.Add_Remove_SteadyState<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
15.02 ns 11.39 ns 0.76 0.23 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.Tests.Add_Remove_SteadyState&lt;Int32&gt;*'

System.Collections.Tests.Add_Remove_SteadyState<Int32>.ImmutableStack(Count: 512)

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 SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.IO.Compression.Deflate

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
472.98 μs 398.12 μs 0.84 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.IO.Compression.Deflate*'

System.IO.Compression.Deflate.Decompress(level: Optimal, file: "alice29.txt")

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 SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in Devirtualization.EqualityComparer

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
4.94 ns 1.95 ns 0.39 0.08 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 'Devirtualization.EqualityComparer*'

Devirtualization.EqualityComparer.ValueTupleCompareCached

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 SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Tests.Perf_Half

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
1.27 ns 0.25 ns 0.19 0.12 False
3.66 ns 1.88 ns 0.51 0.07 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.Tests.Perf_Half*'

System.Tests.Perf_Half.HalfToSingle(value: 12344)

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System.Tests.Perf_Half.SingleToHalf(value: 6.097555E-05)

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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 SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in Microsoft.Extensions.Primitives.StringSegmentBenchmark

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
18.25 ns 14.58 ns 0.80 0.07 False
4.91 ns 3.66 ns 0.75 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 'Microsoft.Extensions.Primitives.StringSegmentBenchmark*'

Microsoft.Extensions.Primitives.StringSegmentBenchmark.Trim

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Microsoft.Extensions.Primitives.StringSegmentBenchmark.IndexOf

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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 arm64
OS Windows 10.0.22621
Queue SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Xml.Linq.Perf_XDocument

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
51.78 ns 44.59 ns 0.86 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.Xml.Linq.Perf_XDocument*'

System.Xml.Linq.Perf_XDocument.CreateWithRootlEement

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 SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Tests.Perf_UInt32

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
15.08 ns 10.80 ns 0.72 0.03 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_UInt32*'

System.Tests.Perf_UInt32.TryParseHex(value: "FFFFFFFF")

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 SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
67.02 ns 61.50 ns 0.92 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 'Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests*'

Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.GetMiss

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 SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Tests.Perf_Guid

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
36.51 ns 31.46 ns 0.86 0.05 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_Guid*'

System.Tests.Perf_Guid.ctor_str

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 SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Threading.Tasks.ValueTaskPerfTest

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
17.30 ns 13.74 ns 0.79 0.12 False
23.25 ns 18.44 ns 0.79 0.11 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.Threading.Tasks.ValueTaskPerfTest*'

System.Threading.Tasks.ValueTaskPerfTest.CreateAndAwait_FromCompletedTask_ConfigureAwait

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System.Threading.Tasks.ValueTaskPerfTest.Await_FromCompletedTask

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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 arm64
OS Windows 10.0.22621
Queue SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Tests.Perf_Enum

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
8.04 ns 5.93 ns 0.74 0.04 False
173.16 ns 160.44 ns 0.93 0.01 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.Tests.Perf_Enum*'

System.Tests.Perf_Enum.IsDefined_Generic_Flags

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System.Tests.Perf_Enum.InterpolateIntoString(value: Red)

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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 arm64
OS Windows 10.0.22621
Queue SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
75.36 ns 49.32 ns 0.65 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.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives&lt;Int32&gt;*'

System.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>.TrailingZeroCount(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 arm64
OS Windows 10.0.22621
Queue SurfaceWindows
Baseline 8b3b6e5d4edc85448982211a57f44c7bbab92a17
Compare 4252c8d09b2ec537928f34dad269f02f167c8ce5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.Tests.Perf_Version

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
52.61 ns 47.70 ns 0.91 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_Version*'

System.Tests.Perf_Version.ToString3

ETL Files

Histogram

JIT Disasms

Docs

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

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