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[Perf] Changes at 1/14/2022 9:04:11 AM #2958

@performanceautofiler

Description

@performanceautofiler

Run Information

Architecture x64
OS Windows 10.0.18362
Baseline 27fdc2d22f8717c7b0ba254ae9ef2900d00f5e7a
Compare 0b527a201f4c286f13ef8b829bbd1651bdad7a52
Diff Diff

Improvements in System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
CreateFromFile - Duration of single invocation 68.24 μs 49.62 μs 0.73 0.07 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateFromFile(capacity: 100000)


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 49.61847222222222 < 65.76320157512504.
IsChangePoint: Marked as a change because one of 11/10/2021 9:20:40 AM, 11/15/2021 10:42:51 PM, 11/30/2021 5:02:34 PM, 12/3/2021 12:15:47 AM, 12/8/2021 1:12:03 PM, 12/13/2021 11:29:53 PM, 1/14/2022 6:20:45 AM, 1/18/2022 5:19:20 AM falls between 1/8/2022 8:22:56 PM and 1/18/2022 5:19:20 AM.
IsImprovementStdDev: Marked as improvement because 50.50222003408319 (T) = (0 -49585.54210920129) / Math.Sqrt((26882559.916112512 / (299)) + (275757.0276720368 / (19))) is greater than 1.9674995188240387 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (19) - 2, .975) and 0.2476210386383745 = (65905.00885280385 - 49585.54210920129) / 65905.00885280385 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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