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[Perf] Linux/x64: 47 Improvements on 10/17/2025 6:02:57 AM +00:00 #64103

@performanceautofiler

Description

@performanceautofiler

Run Information

Name Value
Architecture x64
OS ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in System.Xml.Linq.Perf_XName

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
1.21 μs 1.06 μs 0.88 0.10 False
596.72 ns 536.23 ns 0.90 0.08 False
1.32 μs 1.19 μs 0.90 0.10 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Xml.Linq.Perf_XName*'

System.Xml.Linq.Perf_XName.CreateElementWithNamespace

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System.Xml.Linq.Perf_XName.CreateElement

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System.Xml.Linq.Perf_XName.CreateElementWithNamespaceImplicitOperator

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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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in PerfLabTests.CastingPerf

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
1.05 ms 908.59 μs 0.86 0.16 False
1.05 ms 927.00 μs 0.88 0.11 False
1.07 ms 926.32 μs 0.87 0.11 False
1.07 ms 917.78 μs 0.86 0.15 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
python3 .\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.IntObj

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PerfLabTests.CastingPerf.FooObjIsFoo

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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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in System.Threading.Tests.Perf_Volatile

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
13.98 ns 10.35 ns 0.74 0.33 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Threading.Tests.Perf_Volatile*'

System.Threading.Tests.Perf_Volatile.Read_double

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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in MicroBenchmarks.Serializers.Xml_FromStream<MyEventsListerViewModel>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
12.61 ms 11.54 ms 0.91 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'MicroBenchmarks.Serializers.Xml_FromStream<MyEventsListerViewModel>*'

MicroBenchmarks.Serializers.Xml_FromStream<MyEventsListerViewModel>.XmlSerializer_

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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in MicroBenchmarks.Serializers.Xml_FromStream<SimpleStructWithProperties>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
53.73 μs 49.61 μs 0.92 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'MicroBenchmarks.Serializers.Xml_FromStream<SimpleStructWithProperties>*'

MicroBenchmarks.Serializers.Xml_FromStream<SimpleStructWithProperties>.XmlSerializer_

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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in System.Hashing

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
5.76 μs 4.29 μs 0.75 0.04 False
129.32 ns 96.36 ns 0.75 0.08 False
57.34 μs 41.27 μs 0.72 0.05 False
680.38 ns 481.63 ns 0.71 0.07 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Hashing*'

System.Hashing.GetStringHashCode(BytesCount: 1000)

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System.Hashing.GetStringHashCode(BytesCount: 10)

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System.Hashing.GetStringHashCode(BytesCount: 10000)

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System.Hashing.GetStringHashCode(BytesCount: 100)

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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in System.Globalization.Tests.StringSearch

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
761.06 ns 699.86 ns 0.92 0.14 False
720.03 ns 619.34 ns 0.86 0.22 False
717.87 ns 633.71 ns 0.88 0.19 False
801.19 ns 648.27 ns 0.81 0.13 False
629.18 ns 537.51 ns 0.85 0.22 False

graph
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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Globalization.Tests.StringSearch*'

System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options: (en-US, None, True))

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System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options: (, IgnoreCase, True))

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System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options: (en-US, IgnoreCase, True))

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System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options: (, None, True))

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System.Globalization.Tests.StringSearch.IsPrefix_DifferentFirstChar(Options: (pl-PL, None, False))

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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in System.Collections.IterateForEach<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
28.66 μs 26.46 μs 0.92 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.IterateForEach<Int32>*'

System.Collections.IterateForEach<Int32>.LinkedList(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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in Interop.StructureToPtr

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
661.41 ns 606.52 ns 0.92 0.09 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Interop.StructureToPtr*'

Interop.StructureToPtr.MarshalStructureToPtr

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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in System.Threading.Tests.Perf_CancellationToken

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
889.57 ns 780.07 ns 0.88 0.12 False
1.37 μs 1.22 μs 0.89 0.06 False
376.64 ns 331.52 ns 0.88 0.14 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Threading.Tests.Perf_CancellationToken*'

System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource2

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System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource3

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System.Threading.Tests.Perf_CancellationToken.RegisterAndUnregister_Serial

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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in Microsoft.Extensions.Primitives.StringSegmentBenchmark

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
233.90 ns 172.29 ns 0.74 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Microsoft.Extensions.Primitives.StringSegmentBenchmark*'

Microsoft.Extensions.Primitives.StringSegmentBenchmark.GetSegmentHashCode

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 ubuntu 22.04
Queue ViperUbuntu
Baseline 2a636511d7f4982577dd3dde9134d53b9b2686cc
Compare e8d0ad08596064674c07167813799198394ef499
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Improvements in System.Collections.TryGetValueTrue<String, String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
372.07 μs 314.46 μs 0.85 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.TryGetValueTrue<String, String>*'

System.Collections.TryGetValueTrue<String, String>.ImmutableDictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

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

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