[Perf] Windows/x64: 3 Improvements on 12/30/2022 6:15:13 AM

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.19042
Baseline	96b849ecfc8c535eafd01e0ae82c8a54488aacfb
Compare	c71ad8cfdd0065395b01b3af6c06a0214f04c249
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
LastIndexOf_Word_NotFound - Duration of single invocation	406.52 ns	351.46 ns	0.86	0.00	False
LastIndexOf_Word_NotFound - Duration of single invocation	408.56 ns	351.99 ns	0.86	0.00	False
LastIndexOf_Word_NotFound - Duration of single invocation	409.49 ns	353.03 ns	0.86	0.00	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.LastIndexOf_Word_NotFound(Options: (, None, 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 351.4594628225123 < 390.25866197028955.
IsChangePoint: Marked as a change because one of 12/30/2022 6:06:02 AM, 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 281.1193857714623 (T) = (0 -352.04980454621716) / Math.Sqrt((5.020310421000824 / (299)) + (0.26210192790417536 / (10))) is greater than 1.9677212881555053 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (10) - 2, .975) and 0.14206243912008873 = (410.3443194457538 - 352.04980454621716) / 410.3443194457538 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, IgnoreNonSpace, 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 351.986281992861 < 389.596491330546.
IsChangePoint: Marked as a change because one of 12/30/2022 6:06:02 AM, 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 237.7499299941653 (T) = (0 -351.7439850299581) / Math.Sqrt((4.941356457018907 / (299)) + (0.4406100221088075 / (10))) is greater than 1.9677212881555053 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (10) - 2, .975) and 0.1426417814666147 = (410.26490144534756 - 351.7439850299581) / 410.26490144534756 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, 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 353.02974272227095 < 389.9444907088862.
IsChangePoint: Marked as a change because one of 12/30/2022 6:06:02 AM, 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 65.9144475398213 (T) = (0 -353.152219356543) / Math.Sqrt((4.41398316594754 / (299)) + (7.407927827712044 / (10))) is greater than 1.9677212881555053 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (10) - 2, .975) and 0.13959081240076418 = (410.4468251227408 - 353.152219356543) / 410.4468251227408 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