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[Perf] Windows/x64: 1 Regression on 10/13/2022 10:51:15 PM #8993

@performanceautofiler

Description

@performanceautofiler

Run Information

Architecture x64
OS Windows 10.0.19042
Baseline 65561786b4c07d487bf9c0e7c4f16d6a6d6ad7ed
Compare d4f078bf983b45554ac917e857fcacb785a53f3a
Diff Diff

Regressions in System.Xml.Linq.Perf_XElement

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
GetAttribute - Duration of single invocation 21.66 ns 23.61 ns 1.09 0.46 False

graph
Test Report

Repro

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

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Xml.Linq.Perf_XElement.GetAttribute


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.
IsRegressionWindowed: Marked as regression because 23.61168895807073 > 22.837756753456883.
IsChangePoint: Marked as a change because one of 8/22/2022 7:03:36 PM, 8/23/2022 8:42:14 PM, 10/13/2022 5:34:08 PM, 10/18/2022 1:35:00 AM falls between 10/7/2022 9:25:17 PM and 10/18/2022 1:35:00 AM.
IsRegressionStdDev: Marked as regression because -6.085062324448584 (T) = (0 -24.325940808166493) / Math.Sqrt((0.7757410226159789 / (38)) + (1.3026125884528592 / (16))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (38) + (16) - 2, .025) and -0.08674742611217663 = (22.384171541304863 - 24.325940808166493) / 22.384171541304863 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.
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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