[Perf] Improvement on 8/5/2022 7:33:33 PM

[performanceautofiler]

Run Information

Architecture	arm64
OS	ubuntu 20.04
Baseline	dafc6dfd9dd0a38adc3ff10b0f178b3920151ce7
Compare	638a4c1a405daef6a3f1a9cacedbb6cd324e47f6
Diff	Diff

Improvements in System.Perf_Convert

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ToBase64CharArray - Duration of single invocation	1.55 μs	733.24 ns	0.47	0.00	False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Perf_Convert.ToBase64CharArray(binaryDataSize: 1024, formattingOptions: None)

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 733.2382573315465 < 1.4707275384625764.
IsChangePoint: Marked as a change because one of 8/5/2022 12:58:40 PM, 8/11/2022 10:02:44 AM falls between 8/2/2022 9:32:02 PM and 8/11/2022 10:02:44 AM.
IsImprovementStdDev: Marked as improvement because 375.91714496460537 (T) = (0 -724.4833745934095) / Math.Sqrt((475.2343820077661 / (299)) + (110.38872444137864 / (29))) is greater than 1.9672675222597202 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (29) - 2, .975) and 0.5465477083458841 = (1597.7058401240379 - 724.4833745934095) / 1597.7058401240379 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