[Perf] Alpine/x64: 1 Improvement on 12/30/2022 6:15:13 AM

[performanceautofiler]

Run Information

Architecture	x64
OS	alpine 3.15
Baseline	1d15f2140f7eb30a976c66290491ec89cd628da0
Compare	92e8eab1bae0487be0405102be33d0e36d59a9e4
Diff	Diff

Improvements in System.Globalization.Tests.StringSearch

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
IndexOf_Word_NotFound - Duration of single invocation	725.66 ns	459.72 ns	0.63	0.05	False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, IgnoreCase, False))

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 459.72080292643375 < 686.125340485365.
IsChangePoint: Marked as a change because one of 12/29/2022 3:42:58 PM, 1/3/2023 6:29:42 AM falls between 12/23/2022 9:40:21 PM and 1/3/2023 6:29:42 AM.
IsImprovementStdDev: Marked as improvement because 152.82103304759644 (T) = (0 -458.6684254079257) / Math.Sqrt((758.8932385704168 / (299)) + (0.26412454446405553 / (9))) is greater than 1.9677467375895035 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (9) - 2, .975) and 0.34805421904182077 = (703.5376848881674 - 458.6684254079257) / 703.5376848881674 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