[Perf] Windows/arm64: 1 Regression on 7/5/2023 5:05:14 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	arm64
OS	Windows 10.0.19041
Queue	SurfaceWindows
Baseline	f1963840e65a89686d1de1a1746b2e1f3dd8bb9c
Compare	9ea317f17d1ef5988921f611f80834d15a3e8070
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Formats.Tar.Tests.Perf_TarFile

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ExtractToDirectory_Path_Async - Duration of single invocation	740.31 μs	794.56 μs	1.07	0.10	False

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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Formats.Tar.Tests.Perf_TarFile*'

Payloads

Baseline
Compare

System.Formats.Tar.Tests.Perf_TarFile.ExtractToDirectory_Path_Async

ETL Files

Histogram

Description of detection logic

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.
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 794.5607557354924 > 779.9523372066548.
IsChangePoint: Marked as a change because one of 7/5/2023 3:41:44 AM, 7/12/2023 7:14:29 PM falls between 7/3/2023 9:53:34 PM and 7/12/2023 7:14:29 PM.
IsRegressionStdDev: Marked as regression because -6.192593565122494 (T) = (0 -801623.0093248229) / Math.Sqrt((470113608.432016 / (9)) + (328136090.2732785 / (14))) is less than -2.079613844716807 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (9) + (14) - 2, .025) and -0.07204187773376815 = (747753.446926351 - 801623.0093248229) / 747753.446926351 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.

JIT Disasms

Docs

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