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[Perf] Changes at 4/12/2022 3:59:36 PM #4732

@performanceautofiler

Description

@performanceautofiler

Run Information

Architecture arm64
OS Windows 10.0.19041
Baseline 02fae074144be0688b42bbe012dacde60cf9fa7d
Compare 623b1879c46711d89efa55951ad46012cb1e4fb8
Diff Diff

Improvements in System.Memory.Span<Char>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
IndexOfValue - Duration of single invocation 37.02 ns 30.11 ns 0.81 0.06 True

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.Span&lt;Char&gt;*'
Details

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Char>.IndexOfValue(Size: 512)


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 30.111012998100154 < 35.17047391072848.
IsChangePoint: Marked as a change because one of 4/12/2022 9:30:02 AM, 4/20/2022 10:05:23 PM falls between 4/12/2022 9:30:02 AM and 4/20/2022 10:05:23 PM.
IsImprovementStdDev: Marked as improvement because 94.92171184712187 (T) = (0 -30.36719203211754) / Math.Sqrt((0.4637353915075991 / (299)) + (0.08923176616814141 / (31))) is greater than 1.9672228266464409 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (31) - 2, .975) and 0.1722083964899267 = (36.68458571378588 - 30.36719203211754) / 36.68458571378588 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

Docs

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

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