[Perf] Linux/x64: 1 Regression on 3/25/2023 7:34:08 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 18.04
Queue	TigerUbuntu
Baseline	c22b79ae2d1b2a9ca73a42e246e3f3da02e631fe
Compare	95dbfc2f9cab66a9d5de834df5f25e8c3a71fc38
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Regressions in System.Threading.Tests.Perf_CancellationToken

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
CancelAfter - Duration of single invocation	331.22 ns	408.99 ns	1.23	0.07	False

Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Baseline
Compare

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Threading.Tests.Perf_CancellationToken*'

Payloads

Baseline
Compare

Histogram

System.Threading.Tests.Perf_CancellationToken.CancelAfter

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 408.99354014549914 > 348.2298085098668.
IsChangePoint: Marked as a change because one of 2/15/2023 12:21:17 PM, 3/10/2023 8:06:53 PM, 3/25/2023 3:38:32 PM, 3/27/2023 3:21:55 PM falls between 3/18/2023 7:37:20 PM and 3/27/2023 3:21:55 PM.
IsRegressionStdDev: Marked as regression because -18.545266974833844 (T) = (0 -413.4086080087377) / Math.Sqrt((46.556476606020865 / (53)) + (150.64161098946664 / (8))) is less than -2.000995378087428 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (53) + (8) - 2, .025) and -0.24867430840284802 = (331.07801227809324 - 413.4086080087377) / 331.07801227809324 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

[radekdoulik]

@tarekgh looks like dotnet/runtime#83604

[tarekgh]

This is duplicate to #14530. @radekdoulik please close it.