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[Perf] Linux/x64: 248 Regressions on 4/8/2025 2:49:36 AM +00:00 #53419

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@performanceautofiler

Description

@performanceautofiler

Run Information

Name Value
Architecture x64
OS ubuntu 22.04
Queue TigerUbuntu
Baseline 68a3c1e032f955984ab364cbc5bb69addd35d770
Compare f3cc87946d2f8f6306aa056c311571fae01c868b
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Regressions in MicroBenchmarks.Serializers.Json_FromString<MyEventsListerViewModel>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
3.08 ms 10.56 ms 3.43 0.34 False
3.15 ms 10.69 ms 3.40 0.34 False

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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.Json_FromString&lt;MyEventsListerViewModel&gt;*'

MicroBenchmarks.Serializers.Json_FromString<MyEventsListerViewModel>.SystemTextJson_Reflection_

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MicroBenchmarks.Serializers.Json_FromString<MyEventsListerViewModel>.SystemTextJson_SourceGen_

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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 TigerUbuntu
Baseline 68a3c1e032f955984ab364cbc5bb69addd35d770
Compare f3cc87946d2f8f6306aa056c311571fae01c868b
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Regressions in System.Text.Json.Tests.Perf_Segment

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
664.04 μs 1.37 ms 2.06 0.35 False
6.58 ms 14.15 ms 2.15 0.38 False
8.37 ms 16.32 ms 1.95 0.40 False
657.02 μs 1.38 ms 2.10 0.35 False
672.97 μs 2.62 ms 3.90 0.33 False
10.18 ms 12.96 ms 1.27 0.37 False
66.89 μs 141.76 μs 2.12 0.38 False
66.26 μs 138.16 μs 2.08 0.44 False
129.73 μs 290.23 μs 2.24 0.32 False
817.66 μs 1.58 ms 1.93 0.34 False
6.60 ms 13.83 ms 2.10 0.36 False
66.06 μs 139.33 μs 2.11 0.36 False
671.57 μs 1.37 ms 2.04 0.39 False
68.77 μs 261.81 μs 3.81 0.34 False
652.70 μs 2.45 ms 3.76 0.40 False
13.07 ms 15.89 ms 1.22 0.36 False
6.74 ms 14.19 ms 2.11 0.37 False

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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.Text.Json.Tests.Perf_Segment*'

System.Text.Json.Tests.Perf_Segment.ReadSingleSegmentSequenceByN(numberOfBytes: 8192, TestCase: Json40KB)

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System.Text.Json.Tests.Perf_Segment.ReadMultiSegmentSequenceUsingSpan(segmentSize: 8192, TestCase: Json400KB)

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System.Text.Json.Tests.Perf_Segment.ReadMultiSegmentSequence(segmentSize: 4096, TestCase: Json400KB)

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System.Text.Json.Tests.Perf_Segment.ReadSingleSegmentSequenceByN(numberOfBytes: 4096, TestCase: Json40KB)

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System.Text.Json.Tests.Perf_Segment.ReadMultiSegmentSequenceUsingSpan(segmentSize: 4096, TestCase: Json40KB)

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System.Text.Json.Tests.Perf_Segment.ReadSingleSegmentSequence(TestCase: Json400KB)

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System.Text.Json.Tests.Perf_Segment.ReadSingleSegmentSequenceByN(numberOfBytes: 4096, TestCase: Json4KB)

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System.Text.Json.Tests.Perf_Segment.ReadSingleSegmentSequenceByN(numberOfBytes: 8192, TestCase: Json4KB)

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System.Text.Json.Tests.Perf_Segment.ReadMultiSegmentSequence(segmentSize: 4096, TestCase: Json4KB)

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System.Text.Json.Tests.Perf_Segment.ReadMultiSegmentSequence(segmentSize: 8192, TestCase: Json40KB)

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System.Text.Json.Tests.Perf_Segment.ReadSingleSegmentSequenceByN(numberOfBytes: 4096, TestCase: Json400KB)

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JIT Disasms

System.Text.Json.Tests.Perf_Segment.ReadMultiSegmentSequence(segmentSize: 8192, TestCase: Json4KB)

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JIT Disasms

System.Text.Json.Tests.Perf_Segment.ReadMultiSegmentSequenceUsingSpan(segmentSize: 8192, TestCase: Json40KB)

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JIT Disasms

System.Text.Json.Tests.Perf_Segment.ReadMultiSegmentSequenceUsingSpan(segmentSize: 8192, TestCase: Json4KB)

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Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Segment.ReadSingleSegmentSequence(TestCase: Json40KB)

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JIT Disasms

System.Text.Json.Tests.Perf_Segment.ReadMultiSegmentSequence(segmentSize: 8192, TestCase: Json400KB)

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Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Segment.ReadMultiSegmentSequenceUsingSpan(segmentSize: 4096, TestCase: Json400KB)

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 TigerUbuntu
Baseline 68a3c1e032f955984ab364cbc5bb69addd35d770
Compare f3cc87946d2f8f6306aa056c311571fae01c868b
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

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

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
1.92 μs 23.40 μs 12.19 0.18 False
467.98 ns 4.37 μs 9.33 0.33 False
717.95 ns 4.82 μs 6.72 0.33 False
197.20 ns 1.27 μs 6.42 0.35 False
10.45 μs 106.44 μs 10.19 0.10 False
8.35 μs 94.25 μs 11.28 0.05 False

graph
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graph
graph
graph
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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.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives&lt;Int32&gt;*'

System.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>.ShiftLeft(BufferLength: 3079)

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System.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>.PopCount(BufferLength: 128)

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System.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>.TrailingZeroCount(BufferLength: 128)

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System.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>.ShiftLeft(BufferLength: 128)

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System.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>.TrailingZeroCount(BufferLength: 3079)

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System.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>.PopCount(BufferLength: 3079)

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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 TigerUbuntu
Baseline 68a3c1e032f955984ab364cbc5bb69addd35d770
Compare f3cc87946d2f8f6306aa056c311571fae01c868b
Diff Diff
Configs CompilationMode:wasm, RunKind:micro

Regressions in MicroBenchmarks.Serializers.Json_FromStream<LoginViewModel>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
5.76 μs 22.33 μs 3.88 0.37 False
8.67 μs 21.93 μs 2.53 0.34 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'MicroBenchmarks.Serializers.Json_FromStream&lt;LoginViewModel&gt;*'

MicroBenchmarks.Serializers.Json_FromStream<LoginViewModel>.SystemTextJson_Reflection_

ETL Files

Histogram

JIT Disasms

MicroBenchmarks.Serializers.Json_FromStream<LoginViewModel>.SystemTextJson_SourceGen_

ETL Files

Histogram

JIT Disasms

Docs

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

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