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[Perf] Changes at 1/4/2022 3:56:15 AM #2789

@performanceautofiler

Description

@performanceautofiler

Run Information

Architecture x64
OS ubuntu 18.04
Baseline 623c059087b200475ba1c2de57a106f595f4e2ec
Compare 312c66f1fc2f749f56612999cb1adab9ca7fde59
Diff Diff

Improvements in System.Tests.Perf_Char

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Char_ToLowerInvariant - Duration of single invocation 19.92 ns 15.75 ns 0.79 0.17 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Char*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Char.Char_ToLowerInvariant(input: "Hello World!")


Description of detection logic

IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 15.753401115973434 < 18.880403530886532.
IsChangePoint: Marked as a change because one of 12/7/2021 9:49:54 AM, 1/4/2022 2:24:22 AM, 1/11/2022 1:49:04 AM falls between 1/1/2022 6:33:38 PM and 1/11/2022 1:49:04 AM.
IsImprovementStdDev: Marked as improvement because 36.159000990857585 (T) = (0 -15.856915206251967) / Math.Sqrt((1.7081291425141794 / (299)) + (0.22737380205918134 / (41))) is greater than 1.9670073106672175 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (41) - 2, .975) and 0.19481913261429534 = (19.693606552943653 - 15.856915206251967) / 19.693606552943653 is greater than 0.05.
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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