[Perf] Changes at 4/6/2022 7:22:46 PM

[performanceautofiler]

Run Information

Architecture	x64
OS	ubuntu 18.04
Baseline	22870c2e31ae3c028cece52babd3cae57b560713
Compare	afb1c64a8dd8933d7b4aab99ab0eade72d6e2dab
Diff	Diff

Improvements 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
MatchesWords - Duration of single invocation	48.99 μs	43.65 μs	0.89	0.02	False
Email_IsNotMatch - Duration of single invocation	258.30 ns	149.54 ns	0.58	0.01	False
Uri_IsMatch - Duration of single invocation	305.58 ns	263.25 ns	0.86	0.01	True
MatchesSet - Duration of single invocation	129.34 μs	111.76 μs	0.86	0.01	False
Uri_IsNotMatch - Duration of single invocation	176.50 ns	90.61 ns	0.51	0.15	True
IP_IsNotMatch - Duration of single invocation	145.63 ns	119.52 ns	0.82	0.06	False
Date_IsMatch - Duration of single invocation	68.55 ns	60.22 ns	0.88	0.07	False
IP_IsMatch - Duration of single invocation	152.18 ns	119.62 ns	0.79	0.06	False
Uri_IsMatch - Duration of single invocation	120.18 ns	87.13 ns	0.73	0.06	True
MatchesSet - Duration of single invocation	55.50 μs	46.24 μs	0.83	0.05	False
Backtracking - Duration of single invocation	1.49 μs	1.32 μs	0.89	0.03	False
MatchWord - Duration of single invocation	1.39 μs	1.21 μs	0.87	0.01	False
IP_IsMatch - Duration of single invocation	534.68 ns	462.82 ns	0.87	0.01	False
Uri_IsNotMatch - Duration of single invocation	321.07 ns	248.94 ns	0.78	0.05	True
Email_IsMatch - Duration of single invocation	196.14 ns	131.90 ns	0.67	0.02	False
Date_IsNotMatch - Duration of single invocation	130.19 ns	101.20 ns	0.78	0.07	False
IP_IsNotMatch - Duration of single invocation	553.90 ns	467.79 ns	0.84	0.01	False

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.MatchesWords(Options: None)

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 43.65480005774603 < 46.62666630739949.
IsChangePoint: Marked as a change because one of 3/17/2022 6:54:53 PM, 4/6/2022 1:01:14 PM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 44.90336127570871 (T) = (0 -43379.71708525115) / Math.Sqrt((18858153.706710875 / (299)) + (184977.8265479928 / (31))) is greater than 1.9672228266464409 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (31) - 2, .975) and 0.21382355916602513 = (55178.09340513181 - 43379.71708525115) / 55178.09340513181 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

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

```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 149.5384710767948 < 246.35776441708552.
IsChangePoint: Marked as a change because one of 3/3/2022 7:35:51 PM, 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 90.9889122981515 (T) = (0 -150.64523672687173) / Math.Sqrt((549.7506286886246 / (299)) + (1.1192709422855351 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.45244261080983833 = (275.1222788714007 - 150.64523672687173) / 275.1222788714007 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

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

```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 263.24834504616825 < 290.2977425819771.
IsChangePoint: Marked as a change because one of 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 66.08049408117405 (T) = (0 -261.86563120270574) / Math.Sqrt((37.90537800163693 / (299)) + (7.747726558346848 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.13064447464756002 = (301.21811337949964 - 261.86563120270574) / 301.21811337949964 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

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

```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 111.75617641369047 < 123.0318953633724.
IsChangePoint: Marked as a change because one of 2/26/2022 10:27:55 AM, 4/6/2022 11:11:30 PM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 57.54696032100929 (T) = (0 -112401.78152214622) / Math.Sqrt((11296144.295063546 / (299)) + (1170646.0231315535 / (29))) is greater than 1.9672675222597202 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (29) - 2, .975) and 0.1252023658019059 = (128488.8951776627 - 112401.78152214622) / 128488.8951776627 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.Uri_IsNotMatch(Options: IgnoreCase, Compiled)

```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 90.60890614863632 < 174.90691687202897.
IsChangePoint: Marked as a change because one of 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 200.88902352955765 (T) = (0 -91.82390148426981) / Math.Sqrt((49.797412115623935 / (299)) + (1.9269026012413293 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.5082696417706813 = (186.73628737286077 - 91.82390148426981) / 186.73628737286077 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.IP_IsNotMatch(Options: IgnoreCase, Compiled)

```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 119.52272626807085 < 138.5178103962166.
IsChangePoint: Marked as a change because one of 2/28/2022 8:13:22 PM, 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 47.990602645406724 (T) = (0 -120.29665177481263) / Math.Sqrt((150.50551231963271 / (299)) + (1.897093403818936 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.2297690763291783 = (156.18257859797973 - 120.29665177481263) / 156.18257859797973 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.Date_IsMatch(Options: IgnoreCase, Compiled)

```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 60.223727348486946 < 65.94234764020969.
IsChangePoint: Marked as a change because one of 2/26/2022 10:27:55 AM, 3/17/2022 11:24:40 PM, 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 17.444248093052245 (T) = (0 -60.65485636673519) / Math.Sqrt((6.521272699824659 / (299)) + (11.893796750659233 / (33))) is greater than 1.9671786747533526 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (33) - 2, .975) and 0.15096424793340096 = (71.43969640748105 - 60.65485636673519) / 71.43969640748105 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.IP_IsMatch(Options: IgnoreCase, Compiled)

```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 119.61815270436452 < 138.62571580980523.
IsChangePoint: Marked as a change because one of 2/28/2022 8:13:22 PM, 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 47.58914714612324 (T) = (0 -120.31833789213447) / Math.Sqrt((150.32551932230118 / (299)) + (2.085479057152904 / (33))) is greater than 1.9671786747533526 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (33) - 2, .975) and 0.22932003043565025 = (156.11971589212064 - 120.31833789213447) / 156.11971589212064 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.Uri_IsMatch(Options: IgnoreCase, Compiled)

```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 87.12790193316121 < 114.61006456422272.
IsChangePoint: Marked as a change because one of 3/3/2022 10:59:13 PM, 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 94.12490475660199 (T) = (0 -87.30378982201617) / Math.Sqrt((24.735649151395855 / (299)) + (2.0822725199845618 / (33))) is greater than 1.9671786747533526 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (33) - 2, .975) and 0.2916388102293095 = (123.24756223626255 - 87.30378982201617) / 123.24756223626255 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesSet(Options: IgnoreCase, Compiled)

```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 46.24484076327434 < 52.6054806261732.
IsChangePoint: Marked as a change because one of 3/2/2022 5:45:31 AM, 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 61.986545477959105 (T) = (0 -46347.648475328344) / Math.Sqrt((8406892.034497654 / (299)) + (105890.63913976912 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.1911703787607362 = (57302.1156227141 - 46347.648475328344) / 57302.1156227141 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

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

```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 1.3220826347157568 < 1.4112199354782373.
IsChangePoint: Marked as a change because one of 2/26/2022 10:27:55 AM, 3/15/2022 12:53:39 AM, 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 26.147649028844256 (T) = (0 -1343.034588071943) / Math.Sqrt((3171.4413456970124 / (299)) + (1095.1056812020306 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.11299832630983678 = (1514.1285838667716 - 1343.034588071943) / 1514.1285838667716 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

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

```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 1.2089245091467133 < 1.3248796196682495.
IsChangePoint: Marked as a change because one of 3/17/2022 6:54:53 PM, 4/6/2022 2:58:43 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 37.443454531696744 (T) = (0 -1232.2410147280495) / Math.Sqrt((10357.489149956504 / (299)) + (589.8942368092693 / (33))) is greater than 1.9671786747533526 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (33) - 2, .975) and 0.18046522173666057 = (1503.5859946532935 - 1232.2410147280495) / 1503.5859946532935 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

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

```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 462.81997888036165 < 506.14911555720033.
IsChangePoint: Marked as a change because one of 3/17/2022 6:54:53 PM, 4/6/2022 11:11:30 PM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 52.32708103013061 (T) = (0 -466.5078185780137) / Math.Sqrt((672.0703688558066 / (299)) + (18.554476204152536 / (29))) is greater than 1.9672675222597202 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (29) - 2, .975) and 0.1600899602986607 = (555.4259343582768 - 466.5078185780137) / 555.4259343582768 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

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

```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 248.94113524036888 < 291.41357398384184.
IsChangePoint: Marked as a change because one of 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 57.40468579148349 (T) = (0 -253.16673342012436) / Math.Sqrt((87.80549602908056 / (299)) + (25.726072512724112 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.188562442039922 = (311.99780061521375 - 253.16673342012436) / 311.99780061521375 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.Email_IsMatch(Options: IgnoreCase, Compiled)

```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 131.89844725096629 < 182.59459021739372.
IsChangePoint: Marked as a change because one of 3/3/2022 7:35:51 PM, 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 72.27293982005861 (T) = (0 -132.98682989733743) / Math.Sqrt((284.1134943207271 / (299)) + (1.19212196541653 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.35041451078831065 = (204.7256783071384 - 132.98682989733743) / 204.7256783071384 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.Date_IsNotMatch(Options: IgnoreCase, Compiled)

```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 101.19798682701439 < 121.57709544534147.
IsChangePoint: Marked as a change because one of 3/2/2022 5:45:31 AM, 4/6/2022 12:51:22 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 65.99825222509061 (T) = (0 -98.40815487453678) / Math.Sqrt((65.3192164524575 / (299)) + (3.4647815031527682 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.27515091810265274 = (135.7636469883441 - 98.40815487453678) / 135.7636469883441 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

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

```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 467.79406783655327 < 510.8705381448135.
IsChangePoint: Marked as a change because one of 3/17/2022 6:54:53 PM, 4/6/2022 11:11:30 PM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 49.52298274171716 (T) = (0 -467.82895151434764) / Math.Sqrt((658.1245254734469 / (299)) + (27.132775004197956 / (29))) is greater than 1.9672675222597202 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (29) - 2, .975) and 0.1578808994219902 = (555.5377513622971 - 467.82895151434764) / 555.5377513622971 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

[AndyAyersMS]

Looks like dotnet/runtime#67184