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[Perf] Linux/arm64: 2 Improvements on 10/14/2023 5:18:12 AM · Issue #23341 · dotnet/perf-autofiling-issues · GitHub
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[Perf] Linux/arm64: 2 Improvements on 10/14/2023 5:18:12 AM #23341

@performanceautofiler

Description

@performanceautofiler

Run Information

Name Value
Architecture arm64
OS ubuntu 20.04
Queue AmpereUbuntu
Baseline 851c274cc50544bf11a59e1011dbc594ca7010b0
Compare 5233eea73e60915d849b945dccec150bc57827c6
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Improvements in System.IO.Tests.BinaryReaderTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
37.16 ns 17.21 ns 0.46 0.44 False
55.73 ns 46.93 ns 0.84 0.04 False

graph
graph
Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Tests.BinaryReaderTests*'

Payloads

Baseline
Compare

System.IO.Tests.BinaryReaderTests.DefaultCtor

ETL Files

Histogram

Description of detection logic

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.
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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 10/13/2023 7:46:10 PM, 10/18/2023 4:42:02 PM falls between 10/9/2023 8:09:24 PM and 10/18/2023 4:42:02 PM.
IsImprovementStdDev: Marked as improvement because 63.93255081975221 (T) = (0 -17.2904241963343) / Math.Sqrt((14.64288811564254 / (126)) + (0.0518272671856374 / (7))) is greater than 1.9782385392300934 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (126) + (7) - 2, .975) and 0.5652245474277067 = (39.7686302067831 - 17.2904241963343) / 39.7686302067831 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

JIT Disasms

System.IO.Tests.BinaryReaderTests.ReadSmallString

ETL Files

Histogram

Description of detection logic

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.
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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/31/2023 3:02:32 AM, 9/7/2023 2:36:34 PM, 10/13/2023 7:46:10 PM, 10/18/2023 4:42:02 PM falls between 10/9/2023 8:09:24 PM and 10/18/2023 4:42:02 PM.
IsImprovementStdDev: Marked as improvement because 26.675441447911112 (T) = (0 -47.041789786518926) / Math.Sqrt((3.330811654652138 / (126)) + (0.45415244906630514 / (7))) is greater than 1.9782385392300934 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (126) + (7) - 2, .975) and 0.1462877094838017 = (55.10262685579359 - 47.041789786518926) / 55.10262685579359 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

JIT Disasms

Docs

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

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