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[Perf] Linux/x64: 2 Regressions on 10/17/2022 8:10:07 PM #9224

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performanceautofiler bot opened this issue Oct 25, 2022 · 1 comment
Open

[Perf] Linux/x64: 2 Regressions on 10/17/2022 8:10:07 PM #9224

performanceautofiler bot opened this issue Oct 25, 2022 · 1 comment
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arch-wasm arch-x64 branch-refs/heads/main kind-micro os-linux perf-regression untriaged

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performanceautofiler bot commented Oct 25, 2022 •
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Run Information

Architecture x64
OS ubuntu 18.04
Baseline 59f14ac45408d557bd6b423e7a9c175adc85e125
Compare 8393c4eb74afecaa70267b2a94b9b94c1d1ae384
Diff Diff

Regressions in System.Tests.Perf_GC<Byte>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
NewOperator_Array - Duration of single invocation 102.70 ns 117.29 ns 1.14 0.09 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_GC&lt;Byte&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Tests.Perf_GC<Byte>.NewOperator_Array(length: 1000)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 117.28565912291704 > 107.43279858926905.
IsChangePoint: Marked as a change because one of 10/11/2022 8:42:28 PM, 10/17/2022 3:19:47 PM, 10/25/2022 8:17:52 AM falls between 10/16/2022 1:15:28 PM and 10/25/2022 8:17:52 AM.
IsRegressionStdDev: Marked as regression because -30.001280314266534 (T) = (0 -122.4409338900829) / Math.Sqrt((2.5470866015991285 / (15)) + (6.957639179831541 / (25))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (15) + (25) - 2, .025) and -0.19620590017443273 = (102.35774114826583 - 122.4409338900829) / 102.35774114826583 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

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

### Run Information
Architecture x64
OS ubuntu 18.04
Baseline 59f14ac45408d557bd6b423e7a9c175adc85e125
Compare 8393c4eb74afecaa70267b2a94b9b94c1d1ae384
Diff Diff

Regressions in System.Tests.Perf_GC<Char>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
NewOperator_Array - Duration of single invocation 166.25 ns 207.60 ns 1.25 0.03 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_GC&lt;Char&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Tests.Perf_GC<Char>.NewOperator_Array(length: 1000)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 207.59893320305267 > 175.94015382576816.
IsChangePoint: Marked as a change because one of 10/11/2022 8:42:28 PM, 10/17/2022 3:19:47 PM, 10/25/2022 8:17:52 AM falls between 10/16/2022 1:15:28 PM and 10/25/2022 8:17:52 AM.
IsRegressionStdDev: Marked as regression because -44.10452461040016 (T) = (0 -207.3297107509298) / Math.Sqrt((6.080995449937827 / (16)) + (10.61089961931112 / (26))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (26) - 2, .025) and -0.23282791136047337 = (168.1740888897733 - 207.3297107509298) / 168.1740888897733 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository
@radekdoulik
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There's only one change in the range of commits dotnet/runtime@4574ccb...3ba1dd2. No idea how it can affect wasm at all. @lewing any idea?

@radekdoulik radekdoulik mentioned this issue Nov 9, 2022
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