[Perf] Changes at 3/2/2022 12:55:43 AM

[performanceautofiler]

Run Information

Architecture	arm64
OS	ubuntu 18.04
Baseline	3cbed4b71800709a8121e50e964ae5b02bd80b94
Compare	2330b4bef645bf8bcd3011f35968e55192c697f5
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
IsSuffix_DifferentLastChar - Duration of single invocation	33.14 ns	14.62 ns	0.44	0.85	False
IsSuffix_DifferentLastChar - Duration of single invocation	20.39 ns	12.74 ns	0.63	0.80	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Globalization.Tests.StringSearch*'

Payloads

Baseline
Compare

Histogram

System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (, 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 14.62337396251994 < 27.12010583701336.
IsChangePoint: Marked as a change because one of 3/1/2022 7:31:17 PM, 3/9/2022 10:55:02 PM falls between 3/1/2022 6:59:52 AM and 3/9/2022 10:55:02 PM.
IsImprovementStdDev: Marked as improvement because 7.743620166463335 (T) = (0 -18.798331572263372) / Math.Sqrt((40.79375169669848 / (299)) + (14.64906910022151 / (29))) is greater than 1.9672675222597202 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (29) - 2, .975) and 0.248092064358199 = (25.00084209939586 - 18.798331572263372) / 25.00084209939586 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (, None, False))

```log

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 12.741801907968576 < 19.02383232856284.
IsChangePoint: Marked as a change because one of 1/26/2022 8:19:47 PM, 3/2/2022 12:55:43 AM, 3/9/2022 10:55:02 PM falls between 3/1/2022 6:59:52 AM and 3/9/2022 10:55:02 PM.
IsImprovementStdDev: Marked as improvement because 13.474929017681223 (T) = (0 -15.014426322367703) / Math.Sqrt((41.712205124124345 / (299)) + (7.167133580850816 / (28))) is greater than 1.967290077109849 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (28) - 2, .975) and 0.3607720500111206 = (23.48837581746685 - 15.014426322367703) / 23.48837581746685 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

[DrewScoggins]

Improvement likely from dotnet/runtime#65288