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Regressions in System.Threading.Tests.Perf_ThreadPool on arm64 #69258

@performanceautofiler

Description

@performanceautofiler

Run Information

Architecture arm64
OS Windows 10.0.19041
Baseline f9a459ef863e2436305662343f641e5e2a0c95b3
Compare 8a31a320899888a1b0c97011f0c337ddbaeac19f
Diff Diff

Regressions in System.Threading.Tests.Perf_ThreadPool

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
QueueUserWorkItem_WaitCallback_Throughput - Duration of single invocation 2.73 secs 3.24 secs 1.19 0.26 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Threading.Tests.Perf_ThreadPool.QueueUserWorkItem_WaitCallback_Throughput(WorkItemsPerCore: 20000000)


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 3.244571523529412 > 2.9803953254687507.
IsChangePoint: Marked as a change because one of 5/5/2022 2:36:12 AM, 5/9/2022 6:32:22 AM falls between 4/30/2022 6:29:51 PM and 5/9/2022 6:32:22 AM.
IsRegressionStdDev: Marked as regression because -11.754416497632137 (T) = (0 -3368770191.1844263) / Math.Sqrt((9693724322276770 / (27)) + (20906504443517576 / (13))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (27) + (13) - 2, .025) and -0.18309461673868646 = (2847422466.0668 - 3368770191.1844263) / 2847422466.0668 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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