[Perf] Alpine/x64: 2 Regressions on 10/27/2022 5:53:52 AM

[performanceautofiler]

Run Information

Architecture	x64
OS	alpine 3.15
Baseline	65233ebb1368ab5eebe76c05aac852b9b6a8cde8
Compare	060a1967649469fa71986dc92bb41629c0970946
Diff	Diff

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Cache

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
IsMatch - Duration of single invocation	32.59 ms	35.80 ms	1.10	0.12	False
IsMatch - Duration of single invocation	36.38 ms	39.22 ms	1.08	0.05	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Cache*'

Related Issues

Regressions

• [Perf] Windows/x64: 5 Regressions on 10/27/2022 5:53:52 AM

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch(total: 400000, unique: 1, cacheSize: 15)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 35.804903616666664 > 34.5423636425.
IsChangePoint: Marked as a change because one of 9/9/2022 3:12:19 AM, 10/27/2022 4:20:56 AM, 11/1/2022 10:15:31 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 10:15:31 AM.
IsRegressionStdDev: Marked as regression because -6.726731538051464 (T) = (0 -35090999.35288918) / Math.Sqrt((982903008551.4868 / (30)) + (783410010258.5068 / (22))) is less than -2.0085591120996775 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (30) + (22) - 2, .025) and -0.05276961858227307 = (33332078.294722226 - 35090999.35288918) / 33332078.294722226 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

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

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 39.2239965 > 38.15560217875.
IsChangePoint: Marked as a change because one of 9/8/2022 6:17:28 PM, 10/27/2022 12:34:03 AM, 11/1/2022 10:15:31 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 10:15:31 AM.
IsRegressionStdDev: Marked as regression because -19.89399289828881 (T) = (0 -38733526.80766046) / Math.Sqrt((247016117122.89456 / (29)) + (104401505467.41608 / (23))) is less than -2.0085591120996775 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (29) + (23) - 2, .025) and -0.06234811895796832 = (36460295.93920046 - 38733526.80766046) / 36460295.93920046 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository