[Perf] Windows/x64: 1 Improvement on 7/6/2023 7:42:33 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.19042
Queue	OwlWindows
Baseline	cd9d54165b0de56d3974f9969d3e70412c871c4b
Compare	5d54b08d5fc40d0b1c156f430a487a94c1e34f79
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Improvements in System.Text.RegularExpressions.Tests.Perf_Regex_Cache

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IsMatch - Duration of single invocation	62.35 ms	37.25 ms	0.60	0.26	False

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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Cache*'

Payloads

Baseline
Compare

System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch(total: 40000, unique: 7, cacheSize: 0)

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 37.25100952380953 < 56.204896749999996.
IsChangePoint: Marked as a change because one of 5/22/2023 7:40:07 AM, 6/5/2023 10:43:22 AM, 6/9/2023 2:21:24 AM, 7/6/2023 1:53:22 PM, 7/10/2023 4:47:56 PM falls between 7/1/2023 10:14:52 PM and 7/10/2023 4:47:56 PM.
IsImprovementStdDev: Marked as improvement because 4.3715654081106425 (T) = (0 -42794468.92669987) / Math.Sqrt((49613772093455.25 / (299)) + (69123171992084.48 / (11))) is greater than 1.9676960046166507 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (11) - 2, .975) and 0.20599158911462861 = (53896745.09742439 - 42794468.92669987) / 53896745.09742439 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