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

[performanceautofiler]

Run Information

Architecture	arm64
OS	Windows 10.0.25094
Baseline	dafc6dfd9dd0a38adc3ff10b0f178b3920151ce7
Compare	b8554beea57afb5d75c55c8ea19ec9965b8917fe
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	2.18 μs	1.09 μs	0.50	0.63	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 1.0913755461695314 < 2.218862788644444.
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 30.73667985788692 (T) = (0 -1041.5937628624522) / Math.Sqrt((35536.06835514535 / (299)) + (12920.266713806659 / (8))) is greater than 1.967772354556772 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (8) - 2, .975) and 0.551320825507939 = (2321.466700658919 - 1041.5937628624522) / 2321.466700658919 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