[Perf] Changes at 11/17/2021 11:50:34 PM

[performanceautofiler]

Run Information

Architecture	x64
OS	ubuntu 18.04
Baseline	c3973270d5219607e96db68d7d53f45e88600a55
Compare	8275c379a5c11e006bc6037372a12a2aecc15644
Diff	Diff

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Common

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Email_IsNotMatch - Duration of single invocation	472.12 ns	798.46 ns	1.69	0.03	True
SplitWords - Duration of single invocation	122.69 μs	184.25 μs	1.50	0.03	True

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Text.RegularExpressions.Tests.Perf_Regex_Common.Email_IsNotMatch(Options: IgnoreCase, Compiled)

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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 798.4554990079249 > 494.21210129845616.
IsChangePoint: Marked as a change because one of 11/16/2021 12:49:58 PM, 11/23/2021 3:51:55 AM falls between 11/14/2021 12:07:47 PM and 11/23/2021 3:51:55 AM.
IsRegressionStdDev: Marked as regression because -187.63927876660404 (T) = (0 -804.8933315673191) / Math.Sqrt((6.873745422593172 / (25)) + (66.07369264624475 / (23))) is less than -2.0128955989180297 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (25) + (23) - 2, .025) and -0.7053285700117634 = (471.9872438199795 - 804.8933315673191) / 471.9872438199795 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 as regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.SplitWords(Options: None)

```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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 184.24542620798323 > 128.73112275053325.
IsChangePoint: Marked as a change because one of 11/17/2021 2:42:53 PM, 11/23/2021 3:51:55 AM falls between 11/14/2021 12:07:47 PM and 11/23/2021 3:51:55 AM.
IsRegressionStdDev: Marked as regression because -43.57043331012908 (T) = (0 -179979.49112687304) / Math.Sqrt((2224591.924455732 / (32)) + (39265581.571545586 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -0.4623281025861929 = (123077.36602242084 - 179979.49112687304) / 123077.36602242084 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 as regression because Edge Detector said so.

Docs

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

[naricc]

Best guess is that this is also here: dotnet/runtime@25237fa

[naricc]

Looks like this: dotnet/runtime@25237fa

[naricc]

dotnet/runtime#61972