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[Perf] Linux/arm64: 86 Improvements on 12/9/2022 1:45:57 AM #10694

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performanceautofiler bot opened this issue Dec 13, 2022 · 5 comments
Closed

[Perf] Linux/arm64: 86 Improvements on 12/9/2022 1:45:57 AM #10694

performanceautofiler bot opened this issue Dec 13, 2022 · 5 comments
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ampere arch-arm64 branch-refs/heads/main kind-micro_mono mono-interpreter os-linux perf-improvement runtime-mono untriaged

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@performanceautofiler
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Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.IO.Tests.Perf_Path

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
GetTempPath - Duration of single invocation 1.86 μs 1.66 μs 0.89 0.04 False
GetFileNameWithoutExtension - Duration of single invocation 647.54 ns 540.79 ns 0.84 0.16 False
ChangeExtension - Duration of single invocation 571.69 ns 452.73 ns 0.79 0.05 False
GetRandomFileName - Duration of single invocation 1.23 μs 1.13 μs 0.92 0.08 False
GetFileName - Duration of single invocation 559.74 ns 425.26 ns 0.76 0.16 False
GetDirectoryName - Duration of single invocation 1.14 μs 1.00 μs 0.88 0.16 False
GetExtension - Duration of single invocation 398.98 ns 272.64 ns 0.68 0.03 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Tests.Perf_Path*'

Payloads

Baseline
Compare

Histogram

System.IO.Tests.Perf_Path.GetTempPath

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 18.547930538758205 (T) = (0 -1634.245119075875) / Math.Sqrt((1329.5785504894004 / (21)) + (394.63899720243495 / (3))) is greater than 2.0738730678945014 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (21) + (3) - 2, .975) and 0.1367631609060157 = (1893.1596116670685 - 1634.245119075875) / 1893.1596116670685 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.Perf_Path.GetFileNameWithoutExtension

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 18.4921070920953 (T) = (0 -549.2587024976693) / Math.Sqrt((594.4499089197083 / (32)) + (67.76304750247705 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.1776368814468287 = (667.9028887676899 - 549.2587024976693) / 667.9028887676899 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.Perf_Path.ChangeExtension

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 16.547093772221498 (T) = (0 -464.3774588901456) / Math.Sqrt((124.60821648846847 / (32)) + (176.8570232074095 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.22026189764045004 = (595.5556839981299 - 464.3774588901456) / 595.5556839981299 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.Perf_Path.GetRandomFileName

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 12.599789712128068 (T) = (0 -1131.1430830483926) / Math.Sqrt((812.0825079495704 / (31)) + (139.02214182426923 / (3))) is greater than 2.036933343456739 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .975) and 0.08664890405593831 = (1238.4537425656843 - 1131.1430830483926) / 1238.4537425656843 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.Perf_Path.GetFileName

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 11.113961798475602 (T) = (0 -439.5243705866639) / Math.Sqrt((329.70395029145936 / (32)) + (373.8061578368274 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.22702185245249012 = (568.611637963089 - 439.5243705866639) / 568.611637963089 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.Perf_Path.GetDirectoryName

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 9.410898963881742 (T) = (0 -1020.4846066219774) / Math.Sqrt((855.009731524351 / (32)) + (952.648166748076 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.1461086346622041 = (1195.0988709415956 - 1020.4846066219774) / 1195.0988709415956 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.Perf_Path.GetExtension

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 25.841900618008985 (T) = (0 -280.53143766820114) / Math.Sqrt((41.63520953620577 / (32)) + (55.55373138250246 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2908276508215903 = (395.57582581047103 - 280.53143766820114) / 395.57582581047103 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

### Run Information
Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.IO.Tests.StringReaderReadLineTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ReadLineAsync - Duration of single invocation 1.95 ms 1.61 ms 0.83 0.05 False
ReadLine - Duration of single invocation 3.24 ms 2.20 ms 0.68 0.08 False
ReadLine - Duration of single invocation 426.71 μs 330.29 μs 0.77 0.08 False
ReadLine - Duration of single invocation 1.37 ms 964.09 μs 0.70 0.05 False
ReadLineAsync - Duration of single invocation 591.77 μs 493.73 μs 0.83 0.03 False
ReadLineAsync - Duration of single invocation 4.62 ms 3.78 ms 0.82 0.09 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Tests.StringReaderReadLineTests*'

Payloads

Baseline
Compare

Histogram

System.IO.Tests.StringReaderReadLineTests.ReadLineAsync(LineLengthRange: [ 1, 8])

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 29.7176471067134 (T) = (0 -1622841.1501785715) / Math.Sqrt((2123474056.7377908 / (32)) + (198706102.31178403 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.17414269082134487 = (1965038.187762176 - 1622841.1501785715) / 1965038.187762176 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StringReaderReadLineTests.ReadLine(LineLengthRange: [   1,    1])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 26.706856842348316 (T) = (0 -2241348.872867063) / Math.Sqrt((9711298406.32178 / (31)) + (3317646662.4042487 / (3))) is greater than 2.036933343456739 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .975) and 0.30981033749109627 = (3247439.0658352533 - 2241348.872867063) / 3247439.0658352533 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StringReaderReadLineTests.ReadLine(LineLengthRange: [   9,   32])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 18.76309023491619 (T) = (0 -340771.8701278181) / Math.Sqrt((250061092.67564538 / (32)) + (102089901.8986174 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2626301384097371 = (462145.10231389967 - 340771.8701278181) / 462145.10231389967 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StringReaderReadLineTests.ReadLine(LineLengthRange: [   1,    8])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 29.61733901218243 (T) = (0 -986322.7996629901) / Math.Sqrt((1372674909.2051854 / (32)) + (405275461.2240482 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2860255775972484 = (1381453.9690983598 - 986322.7996629901) / 1381453.9690983598 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StringReaderReadLineTests.ReadLineAsync(LineLengthRange: [   9,   32])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 15.45509967076963 (T) = (0 -494099.32772028324) / Math.Sqrt((177630603.80413917 / (32)) + (127689573.17027865 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.17828511941820716 = (601302.6408508626 - 494099.32772028324) / 601302.6408508626 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StringReaderReadLineTests.ReadLineAsync(LineLengthRange: [   1,    1])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 25.663582270167893 (T) = (0 -3838575.906329365) / Math.Sqrt((6471545960.531114 / (30)) + (2551817655.5180416 / (3))) is greater than 2.0395134463927453 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (30) + (3) - 2, .975) and 0.17919698444245513 = (4676610.384675481 - 3838575.906329365) / 4676610.384675481 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
@performanceautofiler
Copy link
Author

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Tests.Perf_String

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
CtorCharCount - Duration of single invocation 258.62 ns 152.58 ns 0.59 0.05 False
Substring_Int - Duration of single invocation 245.40 ns 130.52 ns 0.53 0.11 False
ToUpper - Duration of single invocation 686.15 ns 589.96 ns 0.86 0.06 False
Trim_CharArr - Duration of single invocation 390.47 ns 277.59 ns 0.71 0.05 False
ToLowerInvariant - Duration of single invocation 658.10 ns 553.01 ns 0.84 0.03 False
CtorCharCount - Duration of single invocation 195.94 ns 93.32 ns 0.48 0.24 False
Trim_CharArr - Duration of single invocation 463.33 ns 324.34 ns 0.70 0.11 False
Remove_IntInt - Duration of single invocation 348.41 ns 219.05 ns 0.63 0.27 False
Trim - Duration of single invocation 440.42 ns 337.27 ns 0.77 0.14 False
Split - Duration of single invocation 11.22 μs 8.49 μs 0.76 0.08 False
Substring_Int - Duration of single invocation 245.26 ns 131.36 ns 0.54 0.16 False
ToLowerInvariant - Duration of single invocation 673.14 ns 552.85 ns 0.82 0.03 False
ToLower - Duration of single invocation 741.39 ns 632.09 ns 0.85 0.03 False
Insert - Duration of single invocation 337.46 ns 229.60 ns 0.68 0.08 False
TrimEnd_CharArr - Duration of single invocation 356.76 ns 241.34 ns 0.68 0.07 False
Split - Duration of single invocation 9.02 μs 6.52 μs 0.72 0.05 False
Join_Enumerable - Duration of single invocation 7.03 μs 6.21 μs 0.88 0.03 False
TrimStart_CharArr - Duration of single invocation 355.13 ns 254.41 ns 0.72 0.03 False
ToUpper - Duration of single invocation 704.48 ns 594.12 ns 0.84 0.04 False
Trim - Duration of single invocation 440.15 ns 334.16 ns 0.76 0.08 False
Concat_str_str - Duration of single invocation 492.02 ns 364.84 ns 0.74 0.13 False
CtorCharCount - Duration of single invocation 761.55 ns 618.89 ns 0.81 0.11 False
Substring_IntInt - Duration of single invocation 236.12 ns 119.74 ns 0.51 0.19 False
Trim_CharArr - Duration of single invocation 403.75 ns 284.78 ns 0.71 0.08 False
Remove_IntInt - Duration of single invocation 329.61 ns 211.57 ns 0.64 0.11 False
ToLower - Duration of single invocation 751.64 ns 631.04 ns 0.84 0.03 False
Substring_IntInt - Duration of single invocation 247.40 ns 135.05 ns 0.55 0.03 False
Trim - Duration of single invocation 557.18 ns 445.93 ns 0.80 0.11 False
Remove_Int - Duration of single invocation 261.51 ns 147.88 ns 0.57 0.16 False
Insert - Duration of single invocation 346.58 ns 227.93 ns 0.66 0.24 False
Remove_Int - Duration of single invocation 250.22 ns 140.24 ns 0.56 0.04 False
Substring_IntInt - Duration of single invocation 230.77 ns 119.15 ns 0.52 0.08 False
PadLeft - Duration of single invocation 404.22 ns 299.59 ns 0.74 0.05 False
TrimEnd - Duration of single invocation 371.54 ns 281.65 ns 0.76 0.11 False
Remove_IntInt - Duration of single invocation 337.49 ns 220.55 ns 0.65 0.16 False
ToUpperInvariant - Duration of single invocation 626.95 ns 514.89 ns 0.82 0.08 False
ToUpperInvariant - Duration of single invocation 624.81 ns 514.50 ns 0.82 0.03 False
TrimStart - Duration of single invocation 375.16 ns 270.27 ns 0.72 0.11 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_String*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_String.CtorCharCount(size: 10)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 61.956293147641496 (T) = (0 -149.63373795126256) / Math.Sqrt((17.259813656440333 / (32)) + (6.9778202494914146 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.4120679227054122 = (254.508545680673 - 149.63373795126256) / 254.508545680673 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Substring_Int(s: "dzsdzsDDZSDZSDZSddsz", i: 10)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 60.58132923210779 (T) = (0 -131.36892234913043) / Math.Sqrt((149.05422831393523 / (32)) + (1.5527358059339957 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.5119845546305664 = (269.19009141131295 - 131.36892234913043) / 269.19009141131295 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToUpper(s: "test")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 11.207243152035671 (T) = (0 -596.9944764503626) / Math.Sqrt((123.69905032035464 / (31)) + (216.30267803868475 / (3))) is greater than 2.036933343456739 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .975) and 0.14071290908569917 = (694.7555511571192 - 596.9944764503626) / 694.7555511571192 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Trim_CharArr(s: "Test ", c: [' ', ' '])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 18.40210446441542 (T) = (0 -287.0463560849432) / Math.Sqrt((50.51118793018548 / (32)) + (103.88860886518455 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2783745966058237 = (397.7775099585134 - 287.0463560849432) / 397.7775099585134 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToLowerInvariant(s: "TeSt")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 20.20754305101581 (T) = (0 -560.842249572082) / Math.Sqrt((132.8024057805154 / (32)) + (67.68620168955435 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.1569863090106975 = (665.2824925226497 - 560.842249572082) / 665.2824925226497 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.CtorCharCount(size: 1)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 108.21395680856465 (T) = (0 -92.58514996789536) / Math.Sqrt((25.735678560054957 / (32)) + (0.4072874189416537 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.531220623672959 = (197.5026092088657 - 92.58514996789536) / 197.5026092088657 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Trim_CharArr(s: " Te st  ", c: [' ', ' '])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 13.189984926711075 (T) = (0 -328.5029645257764) / Math.Sqrt((98.74765386992834 / (32)) + (229.46739530353128 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2637169844644462 = (446.1639853077849 - 328.5029645257764) / 446.1639853077849 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Remove_IntInt(s: "dzsdzsDDZSDZSDZSddsz", i1: 10, i2: 1)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 32.50076801425325 (T) = (0 -224.2755234589379) / Math.Sqrt((289.2012134637344 / (32)) + (20.49148620184105 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.3659900990018233 = (353.74135814888933 - 224.2755234589379) / 353.74135814888933 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Trim(s: " Test")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 37.95168599742021 (T) = (0 -336.97981514492045) / Math.Sqrt((188.45986691277758 / (23)) + (0.12012400394428592 / (3))) is greater than 2.063898561620592 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (23) + (3) - 2, .975) and 0.2442393085032233 = (445.8816381115763 - 336.97981514492045) / 445.8816381115763 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Split(s: "A B C D E F G H I J K L M N O P Q R S T U V W X Y Z", arr: [' '], options: RemoveEmptyEntries)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 31.414845210251876 (T) = (0 -8566.683082123442) / Math.Sqrt((77710.9476647077 / (32)) + (13832.201862156528 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.23528055753772792 = (11202.386923157226 - 8566.683082123442) / 11202.386923157226 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Substring_Int(s: "dzsdzsDDZSDZSDZSddsz", i: 7)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 71.38033819069697 (T) = (0 -132.14310270511018) / Math.Sqrt((101.89504949383979 / (32)) + (0.7295405208567716 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.5000095139773372 = (264.29123433184805 - 132.14310270511018) / 264.29123433184805 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToLowerInvariant(s: "TEST")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 19.353225259301677 (T) = (0 -562.5501361878092) / Math.Sqrt((53.19221431330039 / (25)) + (74.17273698134886 / (3))) is greater than 2.0555294386369107 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (25) + (3) - 2, .975) and 0.15129857456334384 = (662.8363277443274 - 562.5501361878092) / 662.8363277443274 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToLower(s: "TEST")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 12.58541159538881 (T) = (0 -643.4730701033856) / Math.Sqrt((113.23090154251125 / (32)) + (171.90665043095873 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.13236446711536953 = (741.6398311443386 - 643.4730701033856) / 741.6398311443386 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Insert(s1: "Test", i: 2, s2: " Test")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 29.97650521768708 (T) = (0 -233.93869159908232) / Math.Sqrt((56.98549725503203 / (32)) + (32.286820888514434 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.3121555746285807 = (340.104074366469 - 233.93869159908232) / 340.104074366469 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.TrimEnd_CharArr(s: "Test ", c: [' ', ' '])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 32.669713978070845 (T) = (0 -244.66775412094398) / Math.Sqrt((35.46994647462987 / (22)) + (32.13701867940637 / (3))) is greater than 2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (3) - 2, .975) and 0.3191558939536504 = (359.3594362470516 - 244.66775412094398) / 359.3594362470516 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Split(s: "A B C D E F G H I J K L M N O P Q R S T U V W X Y Z", arr: [' '], 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 48.925722986302866 (T) = (0 -6479.789119900019) / Math.Sqrt((30946.944998731567 / (32)) + (5802.540562380546 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2891146902328393 = (9115.097795483172 - 6479.789119900019) / 9115.097795483172 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Join_Enumerable

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 13.261768277089743 (T) = (0 -6301.950921530632) / Math.Sqrt((9085.301247788422 / (32)) + (8609.264302148507 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.10568755391996915 = (7046.699337746529 - 6301.950921530632) / 7046.699337746529 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.TrimStart_CharArr(s: " Test", c: [' ', ' '])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 26.890987691852658 (T) = (0 -252.66740923391728) / Math.Sqrt((48.54686491084951 / (32)) + (40.133550182156576 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.29115686636807536 = (356.45038689916674 - 252.66740923391728) / 356.45038689916674 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToUpper(s: "TeSt")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 17.97853534885397 (T) = (0 -603.3056211912295) / Math.Sqrt((111.96504537382515 / (23)) + (64.42790866133129 / (3))) is greater than 2.063898561620592 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (23) + (3) - 2, .975) and 0.13266193452558375 = (695.5830087559153 - 603.3056211912295) / 695.5830087559153 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Trim(s: "Test ")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 15.331113163932436 (T) = (0 -331.64256633682425) / Math.Sqrt((126.87355361122484 / (32)) + (144.18122307730138 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2500568128834083 = (442.2235871118923 - 331.64256633682425) / 442.2235871118923 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Concat_str_str(size: 100)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/7/2022 1:52:16 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 21.598599611281376 (T) = (0 -373.1523631984953) / Math.Sqrt((1153.1884535547601 / (24)) + (129.8186257700601 / (4))) is greater than 2.0555294386369107 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (4) - 2, .975) and 0.34181783027635965 = (566.9438954190688 - 373.1523631984953) / 566.9438954190688 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.CtorCharCount(size: 100)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 26.37482092073351 (T) = (0 -619.001622065983) / Math.Sqrt((470.7912223314085 / (32)) + (7.250107520121762 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.14990915791470097 = (728.1593818227155 - 619.001622065983) / 728.1593818227155 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Substring_IntInt(s: "dzsdzsDDZSDZSDZSddsz", i1: 0, i2: 8)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 68.70968508830485 (T) = (0 -121.29884423431133) / Math.Sqrt((56.93990832046016 / (32)) + (2.3789424675868256 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.4760292380727713 = (231.4992611193787 - 121.29884423431133) / 231.4992611193787 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Trim_CharArr(s: " Test", c: [' ', ' '])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 25.62708515584277 (T) = (0 -286.6133224385547) / Math.Sqrt((58.87681772958752 / (32)) + (55.598172021480636 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2875345978004437 = (402.28384642076475 - 286.6133224385547) / 402.28384642076475 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Remove_IntInt(s: "dzsdzsDDZSDZSDZSddsz", i1: 7, i2: 4)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 23.53446620690658 (T) = (0 -215.7461415940246) / Math.Sqrt((190.0643708787557 / (32)) + (34.76311789009593 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.3135103076315298 = (314.27440789340193 - 215.7461415940246) / 314.27440789340193 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToLower(s: "TeSt")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 14.045151270437055 (T) = (0 -643.7313533087995) / Math.Sqrt((146.85124378602373 / (32)) + (128.08997993379944 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.1304597760333598 = (740.3123346867691 - 643.7313533087995) / 740.3123346867691 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Substring_IntInt(s: "dzsdzsDDZSDZSDZSddsz", i1: 10, i2: 1)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 50.8440004602671 (T) = (0 -137.54554961068357) / Math.Sqrt((15.515578950358302 / (32)) + (11.183818898170301 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.4314030400627197 = (241.90342070393 - 137.54554961068357) / 241.90342070393 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Trim(s: " Te st  ")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 27.548427513049106 (T) = (0 -450.2031618230374) / Math.Sqrt((347.64832052066873 / (31)) + (13.774554667140993 / (3))) is greater than 2.036933343456739 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .975) and 0.19567326587860548 = (559.7267164255287 - 450.2031618230374) / 559.7267164255287 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Remove_Int(s: "dzsdzsDDZSDZSDZSddsz", i: 10)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 40.53554500685698 (T) = (0 -152.53188756342422) / Math.Sqrt((181.22948261713196 / (32)) + (17.505168636273954 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.4740016907471514 = (289.9855092311747 - 152.53188756342422) / 289.9855092311747 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Insert(s1: "dzsdzsDDZSDZSDZSddsz", i: 7, s2: "Test")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 27.1787861362956 (T) = (0 -236.40672953468263) / Math.Sqrt((155.45494410130115 / (32)) + (58.27770475527135 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.3616497616518335 = (370.34016020174585 - 236.40672953468263) / 370.34016020174585 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Remove_Int(s: "dzsdzsDDZSDZSDZSddsz", i: 7)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 77.05831517096087 (T) = (0 -141.94335831416797) / Math.Sqrt((15.556672183566254 / (22)) + (3.7606178750635055 / (3))) is greater than 2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (3) - 2, .975) and 0.4318701960373027 = (249.84318253348982 - 141.94335831416797) / 249.84318253348982 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Substring_IntInt(s: "dzsdzsDDZSDZSDZSddsz", i1: 7, i2: 4)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 77.75616439790576 (T) = (0 -120.79359288898708) / Math.Sqrt((30.21174861490968 / (32)) + (3.060414755023186 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.474285509078192 = (229.7703315675833 - 120.79359288898708) / 229.7703315675833 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.PadLeft(n: 18)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 61.28490828463097 (T) = (0 -300.7262079252391) / Math.Sqrt((67.93631125083105 / (32)) + (1.5395296629602102 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.24861736717236596 = (400.2304482252057 - 300.7262079252391) / 400.2304482252057 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.TrimEnd(s: "Test ")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 29.023966560033433 (T) = (0 -276.7180539311068) / Math.Sqrt((115.22327501247622 / (31)) + (29.88773470761579 / (3))) is greater than 2.036933343456739 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .975) and 0.27950273095032363 = (384.06537514860145 - 276.7180539311068) / 384.06537514860145 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.Remove_IntInt(s: "dzsdzsDDZSDZSDZSddsz", i1: 0, i2: 8)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 35.37650132251484 (T) = (0 -219.31869751252916) / Math.Sqrt((183.00836332955453 / (32)) + (5.199654827852538 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.30571664720341957 = (315.89220255550015 - 219.31869751252916) / 315.89220255550015 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToUpperInvariant(s: "test")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 22.734264683484625 (T) = (0 -514.0131465621125) / Math.Sqrt((104.28764559946801 / (31)) + (55.487713704802495 / (3))) is greater than 2.036933343456739 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .975) and 0.17135621529649986 = (620.3065250118702 - 514.0131465621125) / 620.3065250118702 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToUpperInvariant(s: "TeSt")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 22.157737397196595 (T) = (0 -516.2434501247054) / Math.Sqrt((96.08871298468618 / (32)) + (62.174790965749786 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.17292032729235995 = (624.1762035266336 - 516.2434501247054) / 624.1762035266336 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.TrimStart(s: " Test")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 18.860956967605382 (T) = (0 -269.5482994808463) / Math.Sqrt((91.58760363252837 / (32)) + (97.87628401743368 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.29420194350013007 = (381.90569809382293 - 269.5482994808463) / 381.90569809382293 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

@performanceautofiler
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Author

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Tests.Perf_Int32

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToStringHex - Duration of single invocation 556.15 ns 437.82 ns 0.79 0.03 False
ToStringHex - Duration of single invocation 460.34 ns 351.45 ns 0.76 0.03 False
ToStringHex - Duration of single invocation 702.18 ns 569.65 ns 0.81 0.10 False
ToStringHex - Duration of single invocation 652.25 ns 541.85 ns 0.83 0.08 False
ToString - Duration of single invocation 617.54 ns 479.07 ns 0.78 0.17 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Int32*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Int32.ToStringHex(value: 12345)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 17.313363027886094 (T) = (0 -449.31833208832904) / Math.Sqrt((58.29267578244841 / (32)) + (104.16357878285326 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.1889250085487997 = (553.9787773315447 - 449.31833208832904) / 553.9787773315447 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Int32.ToStringHex(value: 4)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 25.22571393298048 (T) = (0 -358.79442400053813) / Math.Sqrt((44.86011399509033 / (32)) + (44.079297774250385 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.22000588520661551 = (459.99632201786613 - 358.79442400053813) / 459.99632201786613 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Int32.ToStringHex(value: 2147483647)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 9.311543658632672 (T) = (0 -592.6229856241533) / Math.Sqrt((192.91122921097886 / (25)) + (401.64032590782784 / (3))) is greater than 2.0555294386369107 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (25) + (3) - 2, .975) and 0.15751799433529123 = (703.425095894577 - 592.6229856241533) / 703.425095894577 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Int32.ToStringHex(value: -2147483648)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 12.386217474026555 (T) = (0 -557.7267513733749) / Math.Sqrt((275.54847352169975 / (32)) + (208.0768731533498 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.16395044113220153 = (667.0977162270906 - 557.7267513733749) / 667.0977162270906 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Int32.ToString(value: -2147483648)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 16.865506228954164 (T) = (0 -490.58634868205485) / Math.Sqrt((407.9360648640247 / (31)) + (99.41523550071513 / (3))) is greater than 2.036933343456739 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .975) and 0.189573271106909 = (605.3432484292747 - 490.58634868205485) / 605.3432484292747 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

### Run Information
Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.IO.Tests.StreamReaderReadLineTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ReadLineAsync - Duration of single invocation 1.05 ms 961.36 μs 0.91 0.03 False
ReadLine - Duration of single invocation 589.04 μs 499.72 μs 0.85 0.08 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Tests.StreamReaderReadLineTests*'

Payloads

Baseline
Compare

Histogram

System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [ 9, 32])

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 11/6/2022 11:08:52 PM, 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 5.891970662362998 (T) = (0 -976267.5839355855) / Math.Sqrt((724490311.2456234 / (30)) + (322339848.28166807 / (3))) is greater than 2.0395134463927453 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (30) + (3) - 2, .975) and 0.06475020618106042 = (1043857.5772886904 - 976267.5839355855) / 1043857.5772886904 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StreamReaderReadLineTests.ReadLine(LineLengthRange: [   9,   32])

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 15.905853083171285 (T) = (0 -501877.66406390007) / Math.Sqrt((1015569107.3865807 / (31)) + (20558424.198155444 / (3))) is greater than 2.036933343456739 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .975) and 0.16629874741312548 = (601987.4175631069 - 501877.66406390007) / 601987.4175631069 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in Microsoft.Extensions.Primitives.StringSegmentBenchmark

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
SubString - Duration of single invocation 263.45 ns 148.83 ns 0.56 0.08 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Microsoft.Extensions.Primitives.StringSegmentBenchmark*'

Payloads

Baseline
Compare

Histogram

Microsoft.Extensions.Primitives.StringSegmentBenchmark.SubString

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 41.07342245738598 (T) = (0 -153.56317016884293) / Math.Sqrt((21.62364611574943 / (32)) + (19.710467034558178 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.4185975528825428 = (264.1254279719595 - 153.56317016884293) / 264.1254279719595 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Tests.Perf_Environment

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ExpandEnvironmentVariables - Duration of single invocation 2.52 μs 2.30 μs 0.91 0.03 False
GetFolderPath - Duration of single invocation 6.84 μs 1.90 μs 0.28 0.15 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Environment*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Environment.ExpandEnvironmentVariables

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 9.8069624783613 (T) = (0 -2336.791060600554) / Math.Sqrt((653.278493381641 / (32)) + (1219.560508644601 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.07979575793259687 = (2539.4265248664096 - 2336.791060600554) / 2539.4265248664096 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Environment.GetFolderPath(folder: System, option: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/6/2022 2:12:43 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 20.42131400402551 (T) = (0 -2163.2691467595273) / Math.Sqrt((28654.792633250392 / (20)) + (252679.72322807356 / (5))) is greater than 2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (5) - 2, .975) and 0.6827419749919174 = (6818.642796204806 - 2163.2691467595273) / 6818.642796204806 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Net.NetworkInformation.Tests.PhysicalAddressTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
PAMedium - Duration of single invocation 767.62 ns 616.57 ns 0.80 0.14 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Net.NetworkInformation.Tests.PhysicalAddressTests*'

Payloads

Baseline
Compare

Histogram

System.Net.NetworkInformation.Tests.PhysicalAddressTests.PAMedium

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 13.767474867954926 (T) = (0 -608.5475550211642) / Math.Sqrt((1240.2791808113784 / (32)) + (157.20149240316826 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.17763370609746068 = (739.9957409894582 - 608.5475550211642) / 739.9957409894582 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Tests.Perf_UInt64

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToString - Duration of single invocation 658.95 ns 538.85 ns 0.82 0.11 False
ToString - Duration of single invocation 373.55 ns 250.35 ns 0.67 0.05 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_UInt64*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_UInt64.ToString(value: 18446744073709551615)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 27.72278345218375 (T) = (0 -538.44108025448) / Math.Sqrt((483.7815124334002 / (32)) + (2.3248705192601986 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.17030318634246402 = (648.9612487251588 - 538.44108025448) / 648.9612487251588 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_UInt64.ToString(value: 12345)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 32.1193502825745 (T) = (0 -253.1567359540178) / Math.Sqrt((77.74737184015935 / (32)) + (27.97667028650225 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.30313701646357294 = (363.280504109004 - 253.1567359540178) / 363.280504109004 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Text.Json.Tests.Perf_Get

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
GetString - Duration of single invocation 66.05 μs 53.91 μs 0.82 0.05 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Tests.Perf_Get*'

Payloads

Baseline
Compare

Histogram

System.Text.Json.Tests.Perf_Get.GetString

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 10.33370662901215 (T) = (0 -55232.85446336487) / Math.Sqrt((522042.9240334518 / (32)) + (2927535.6252054446 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.1570844983214271 = (65525.96832467164 - 55232.85446336487) / 65525.96832467164 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Numerics.Tests.Perf_BigInteger

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToStringX - Duration of single invocation 1.22 μs 1.10 μs 0.91 0.05 False
ToStringX - Duration of single invocation 1.03 μs 926.89 ns 0.90 0.11 False
ToStringD - Duration of single invocation 1.05 μs 943.41 ns 0.90 0.06 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tests.Perf_BigInteger*'

Payloads

Baseline
Compare

Histogram

System.Numerics.Tests.Perf_BigInteger.ToStringX(numberString: -2147483648)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 13.386950929025712 (T) = (0 -1107.165156072264) / Math.Sqrt((573.3564431796678 / (32)) + (128.03435313810544 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.0860248384155067 = (1211.3733530272868 - 1107.165156072264) / 1211.3733530272868 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Numerics.Tests.Perf_BigInteger.ToStringX(numberString: 123)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 15.903565911487924 (T) = (0 -929.9951257314892) / Math.Sqrt((372.7560999855385 / (32)) + (85.70960692699843 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.09783875677394593 = (1030.852447624444 - 929.9951257314892) / 1030.852447624444 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Numerics.Tests.Perf_BigInteger.ToStringD(numberString: -2147483648)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 6.729519902432285 (T) = (0 -950.6343306686607) / Math.Sqrt((545.0540576336923 / (31)) + (360.11766731269665 / (3))) is greater than 2.036933343456739 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .975) and 0.07667739912992759 = (1029.579834580949 - 950.6343306686607) / 1029.579834580949 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Xml.Linq.Perf_XName

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
NonEmptyNameSpaceToString - Duration of single invocation 643.50 ns 494.11 ns 0.77 0.14 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Xml.Linq.Perf_XName*'

Payloads

Baseline
Compare

Histogram

System.Xml.Linq.Perf_XName.NonEmptyNameSpaceToString

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 28.64528661691629 (T) = (0 -502.5071985791451) / Math.Sqrt((340.36341289565246 / (32)) + (60.717156941943344 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2405546562493033 = (661.6765810919281 - 502.5071985791451) / 661.6765810919281 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Text.Tests.Perf_Encoding

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
GetString - Duration of single invocation 419.00 ns 305.42 ns 0.73 0.08 False
GetString - Duration of single invocation 412.97 ns 301.26 ns 0.73 0.03 False
GetString - Duration of single invocation 931.34 ns 827.92 ns 0.89 0.05 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Tests.Perf_Encoding*'

Payloads

Baseline
Compare

Histogram

System.Text.Tests.Perf_Encoding.GetString(size: 16, encName: "utf-8")

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 39.43454024502998 (T) = (0 -309.9486359519332) / Math.Sqrt((144.28913444232674 / (32)) + (16.852532377852214 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2881913724431556 = (435.43815563991745 - 309.9486359519332) / 435.43815563991745 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Tests.Perf_Encoding.GetString(size: 16, encName: "ascii")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 54.691357165759 (T) = (0 -304.61865876491834) / Math.Sqrt((32.25466521052912 / (32)) + (8.567311518054412 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.26085322149857393 = (412.12201368517583 - 304.61865876491834) / 412.12201368517583 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Tests.Perf_Encoding.GetString(size: 512, encName: "ascii")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 40.23837015251986 (T) = (0 -830.2879673037002) / Math.Sqrt((147.08456730666805 / (32)) + (9.730982088260333 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.11948367228263773 = (942.955787607172 - 830.2879673037002) / 942.955787607172 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

@performanceautofiler
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Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Tests.Perf_Int64

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToString - Duration of single invocation 632.09 ns 538.65 ns 0.85 0.22 False
ToString - Duration of single invocation 386.81 ns 265.92 ns 0.69 0.05 False
ToString - Duration of single invocation 794.55 ns 656.01 ns 0.83 0.11 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Int64*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Int64.ToString(value: 9223372036854775807)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 10.715821226188172 (T) = (0 -526.4097364611494) / Math.Sqrt((585.2818617633078 / (32)) + (225.8696688430523 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.1645232608148942 = (630.0710860898301 - 526.4097364611494) / 630.0710860898301 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Int64.ToString(value: 12345)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 35.709544110204085 (T) = (0 -265.6797482204326) / Math.Sqrt((211.3133333956944 / (32)) + (6.81075768068766 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.2859119450519717 = (372.05460360174897 - 265.6797482204326) / 372.05460360174897 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Int64.ToString(value: -9223372036854775808)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 10/7/2022 12:48:42 AM, 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 11.071735986833378 (T) = (0 -671.8434585407737) / Math.Sqrt((1627.7120674792898 / (32)) + (234.82595536516564 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.15773528258252403 = (797.6630679731637 - 671.8434585407737) / 797.6630679731637 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

### Run Information
Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Text.Json.Serialization.Tests.WriteJson<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
SerializeToString - Duration of single invocation 2.62 μs 2.45 μs 0.94 0.00 False
SerializeToString - Duration of single invocation 2.61 μs 2.46 μs 0.94 0.00 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Serialization.Tests.WriteJson&lt;Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Text.Json.Serialization.Tests.WriteJson<Int32>.SerializeToString(Mode: Reflection)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 16.717108402981868 (T) = (0 -2454.174420948415) / Math.Sqrt((604.2727546696707 / (12)) + (53.504961613294824 / (3))) is greater than 2.160368656462814 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (12) + (3) - 2, .975) and 0.053254077492107046 = (2592.2207454006275 - 2454.174420948415) / 2592.2207454006275 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Json.Serialization.Tests.WriteJson&lt;Int32&gt;.SerializeToString(Mode: SourceGen)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 14.489572572650403 (T) = (0 -2453.3626538178482) / Math.Sqrt((779.1567776274164 / (12)) + (60.73833348119924 / (3))) is greater than 2.160368656462814 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (12) + (3) - 2, .975) and 0.05168953068066659 = (2587.0880193685857 - 2453.3626538178482) / 2587.0880193685857 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Tests.Perf_Uri

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
GetComponents - Duration of single invocation 834.69 ns 720.81 ns 0.86 0.03 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Uri*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Uri.GetComponents

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 16.60375371003853 (T) = (0 -728.2330301613825) / Math.Sqrt((73.03945458214007 / (32)) + (92.23503832727219 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.1158508597330514 = (823.654061283721 - 728.2330301613825) / 823.654061283721 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Diagnostics.Tracing.Perf_EventListener

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
WriteEvent_StringParams - Duration of single invocation 1.58 μs 1.29 μs 0.82 0.05 False
WriteEvent_MixedParams - Duration of single invocation 1.27 μs 1.15 μs 0.91 0.16 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Diagnostics.Tracing.Perf_EventListener*'

Payloads

Baseline
Compare

Histogram

System.Diagnostics.Tracing.Perf_EventListener.WriteEvent_StringParams

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 25.922587275909702 (T) = (0 -1291.6667617771739) / Math.Sqrt((1314.7597214166801 / (32)) + (132.23136028460874 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.15626457718084788 = (1530.8907589317039 - 1291.6667617771739) / 1530.8907589317039 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Diagnostics.Tracing.Perf_EventListener.WriteEvent_MixedParams

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 11.957871202202755 (T) = (0 -1176.8496606251636) / Math.Sqrt((1147.0929363641296 / (32)) + (407.75728267449335 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.11751862853844769 = (1333.5688419984242 - 1176.8496606251636) / 1333.5688419984242 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Tests.Perf_DateTime

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToString - Duration of single invocation 807.76 ns 697.47 ns 0.86 0.08 False
ToString - Duration of single invocation 1.16 μs 1.04 μs 0.89 0.11 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_DateTime*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_DateTime.ToString(format: "r")

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 12.176343314935407 (T) = (0 -689.0954491206634) / Math.Sqrt((1288.8036079824572 / (31)) + (171.76308184391007 / (3))) is greater than 2.036933343456739 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .975) and 0.14941573159582336 = (810.1436562111707 - 689.0954491206634) / 810.1436562111707 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_DateTime.ToString(format: "o")

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 11.078361376241482 (T) = (0 -1051.3953915395339) / Math.Sqrt((1643.6781174238013 / (32)) + (449.84913775001866 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.1300580990782518 = (1208.5811597596648 - 1051.3953915395339) / 1208.5811597596648 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Tests.Perf_Int16

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToString - Duration of single invocation 479.97 ns 369.64 ns 0.77 0.05 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Int16*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Int16.ToString(value: -32768)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 26.067753657219036 (T) = (0 -375.3319579294068) / Math.Sqrt((114.1662408584322 / (32)) + (46.97481445174022 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.23344124996084417 = (489.63234443574595 - 375.3319579294068) / 489.63234443574595 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Tests.Perf_Guid

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
GuidToString - Duration of single invocation 1.01 μs 860.93 ns 0.85 0.19 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Guid*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Guid.GuidToString

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 6.708295429761248 (T) = (0 -884.7149493756186) / Math.Sqrt((549.738864268643 / (32)) + (1220.525085008123 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.13504971215070974 = (1022.8506329253597 - 884.7149493756186) / 1022.8506329253597 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Tests.Perf_SByte

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToString - Duration of single invocation 455.45 ns 341.03 ns 0.75 0.03 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_SByte*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_SByte.ToString(value: -128)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 33.08689384661518 (T) = (0 -345.41177409646986) / Math.Sqrt((50.2924336503081 / (32)) + (27.332385620801574 / (3))) is greater than 2.0345152974461924 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (3) - 2, .975) and 0.23843121002003737 = (453.55295364133536 - 345.41177409646986) / 453.55295364133536 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

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 83b7b5378d10906176a9ec5638f98d7db1e27c3b
Compare 9b5b9775d4b53cee164d5df693ca236cb26492b4
Diff Diff

Improvements in System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Byte>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
EqualsAnyBenchmark - Duration of single invocation 361.86 ns 325.23 ns 0.90 0.30 False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Runtime.Intrinsics.Tests.Perf_Vector128Of&lt;Byte&gt;*'

Payloads

Baseline
Compare

Histogram

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Byte>.EqualsAnyBenchmark

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/8/2022 2:00:38 AM, 12/13/2022 2:17:54 AM falls between 12/4/2022 6:53:17 AM and 12/13/2022 2:17:54 AM.
IsImprovementStdDev: Marked as improvement because 4.998815007330579 (T) = (0 -308.06447286520296) / Math.Sqrt((253.64370303525382 / (22)) + (221.50376191817725 / (3))) is greater than 2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (3) - 2, .975) and 0.1303750342877161 = (354.2498030894002 - 308.06447286520296) / 354.2498030894002 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

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lewing commented Dec 13, 2022

this looks like dotnet/runtime#79392 cc @BrzVlad @SamMonoRT

@BrzVlad BrzVlad mentioned this issue Dec 13, 2022
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lewing commented Dec 13, 2022

similar gains on x64

@kotlarmilos kotlarmilos mentioned this issue Apr 4, 2023
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