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[Perf] Changes at 4/18/2022 5:36:22 AM #4708

@performanceautofiler

Description

@performanceautofiler

Run Information

Architecture x86
OS Windows 10.0.18362
Baseline 729bf92e6e2f91aa337da9459bef079b14a0bf34
Compare f865423523c394cc6015e06f285442a6f909f3a5
Diff Diff

Regressions in System.IO.Tests.Perf_RandomAccess

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Read - Duration of single invocation 60.03 ms 82.05 ms 1.37 0.13 False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.IO.Tests.Perf_RandomAccess.Read(fileSize: 104857600, bufferSize: 16384, options: Asynchronous)


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 82.0464796875 > 60.35382775.
IsChangePoint: Marked as a change because one of 4/14/2022 12:09:31 PM, 4/16/2022 5:36:25 PM, 4/17/2022 8:26:34 PM, 4/19/2022 4:39:14 PM falls between 4/10/2022 11:44:05 PM and 4/19/2022 4:39:14 PM.
IsRegressionStdDev: Marked as regression because -13.492523916293859 (T) = (0 -80259257.30902778) / Math.Sqrt((82300629641282.98 / (50)) + (1584032126586.7437 / (6))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (50) + (6) - 2, .025) and -0.3026534945859573 = (61612130.65684657 - 80259257.30902778) / 61612130.65684657 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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