[Perf] Windows/x64: 1 Regression on 10/9/2023 8:09:24 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.18362
Queue	TigerWindows
Baseline	fa54ce8de1a19d308fe4fcc789b2db16da73a65e
Compare	0ed582a2a93372bc9b14abdd440026f2bfaf8816
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in Benchstone.BenchI.BubbleSort

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Test - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	12.08 μs	13.72 μs	1.14	0.18	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 'Benchstone.BenchI.BubbleSort*'

Payloads

Baseline
Compare

Benchstone.BenchI.BubbleSort.Test

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 13.719717765250072 > 12.680980198401961.
IsChangePoint: Marked as a change because one of 6/19/2023 6:37:24 PM, 6/30/2023 8:34:57 AM, 7/12/2023 2:12:47 AM, 8/28/2023 1:23:07 PM, 9/19/2023 8:08:41 AM, 10/8/2023 11:25:37 PM, 10/16/2023 8:09:45 PM falls between 10/8/2023 1:17:11 AM and 10/16/2023 8:09:45 PM.
IsRegressionStdDev: Marked as regression because -10.053859317427813 (T) = (0 -13494.342653023637) / Math.Sqrt((952.7299476070078 / (12)) + (308500.3218283692 / (16))) is less than -2.055529438636913 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (12) + (16) - 2, .025) and -0.11565699075792232 = (12095.42248631118 - 13494.342653023637) / 12095.42248631118 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