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Regressions in System.ConsoleTests.Perf_Console and Perf_BitOperations #67598

@performanceautofiler

Description

@performanceautofiler

Run Information

Architecture x64
OS Windows 10.0.18362
Baseline 11e38cac771f8c01bd32fb89158dcce4ca993175
Compare 3ff8d262e504d03977edeb67da2b83d01c9ed2db
Diff Diff

Regressions in System.ConsoleTests.Perf_Console

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ResetColor - Duration of single invocation 7.37 μs 36.95 μs 5.01 0.02 True

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.ConsoleTests.Perf_Console*'

Payloads

Baseline
Compare

Histogram

System.ConsoleTests.Perf_Console.ResetColor


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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 36.94856437598737 > 7.69506382027006.
IsChangePoint: Marked as a change because one of 3/29/2022 11:07:04 AM, 4/5/2022 2:02:34 AM falls between 3/26/2022 9:07:40 PM and 4/5/2022 2:02:34 AM.
IsRegressionStdDev: Marked as regression because -60.48813163331453 (T) = (0 -37311.817259111216) / Math.Sqrt((1884.1567516826199 / (24)) + (7633572.295848657 / (31))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (31) - 2, .025) and -4.117514335041215 = (7291.003955499564 - 37311.817259111216) / 7291.003955499564 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 as regression because Edge Detector said so.

Docs

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

### Run Information
Architecture x64
OS Windows 10.0.18362
Baseline 11e38cac771f8c01bd32fb89158dcce4ca993175
Compare 3ff8d262e504d03977edeb67da2b83d01c9ed2db
Diff Diff

Regressions in System.Numerics.Tests.Perf_BitOperations

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
LeadingZeroCount_ulong - Duration of single invocation 535.38 ns 630.87 ns 1.18 0.04 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Numerics.Tests.Perf_BitOperations*'

Payloads

Baseline
Compare

Histogram

System.Numerics.Tests.Perf_BitOperations.LeadingZeroCount_ulong


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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 630.869813368597 > 562.6723204832631.
IsChangePoint: Marked as a change because one of 2/3/2022 10:14:29 PM, 3/17/2022 6:54:53 PM, 3/23/2022 6:35:24 PM, 3/29/2022 11:07:04 AM, 4/5/2022 2:02:34 AM falls between 3/26/2022 9:07:40 PM and 4/5/2022 2:02:34 AM.
IsRegressionStdDev: Marked as regression because -69.37572520177208 (T) = (0 -630.7284862366733) / Math.Sqrt((40.29552834440284 / (23)) + (0.15911275021537738 / (31))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (23) + (31) - 2, .025) and -0.17068938469923683 = (538.7667253843892 - 630.7284862366733) / 538.7667253843892 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.

Docs

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

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PGOarch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIruntime-coreclrspecific to the CoreCLR runtime

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