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[Perf] Linux/x64: 15 Regressions on 12/14/2022 8:02:51 PM #10933

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performanceautofiler bot opened this issue Dec 20, 2022 · 1 comment
Closed

[Perf] Linux/x64: 15 Regressions on 12/14/2022 8:02:51 PM #10933

performanceautofiler bot opened this issue Dec 20, 2022 · 1 comment
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arch-x64 branch-refs/heads/main kind-micro_mono mono-interpreter os-linux perf-regression runtime-mono untriaged

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performanceautofiler bot commented Dec 20, 2022 •
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Run Information

Architecture x64
OS ubuntu 18.04
Baseline 8e15d9f523209caf08db57897777b7beb0516c99
Compare a78811401f3b2fa8be2d8e40b9bb1e706a9e8501
Diff Diff

Regressions in Microsoft.Extensions.Primitives.Performance.StringValuesBenchmark

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Ctor_String - Duration of single invocation 8.10 ns 9.44 ns 1.16 0.37 False
Ctor_Array - Duration of single invocation 8.25 ns 9.40 ns 1.14 0.43 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.Performance.StringValuesBenchmark*'

Payloads

Baseline
Compare

Histogram

Microsoft.Extensions.Primitives.Performance.StringValuesBenchmark.Ctor_String

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 9.435694094199771 > 8.569010319710406.
IsChangePoint: Marked as a change because one of 10/14/2022 9:06:25 AM, 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -4.320548575589876 (T) = (0 -9.235881252068598) / Math.Sqrt((0.464804056128927 / (32)) + (0.34573686094438566 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -0.08644691604821692 = (8.500996335525247 - 9.235881252068598) / 8.500996335525247 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Primitives.Performance.StringValuesBenchmark.Ctor_Array

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 9.401456216160275 > 8.621766211362077.
IsChangePoint: Marked as a change because one of 10/13/2022 10:51:15 PM, 12/11/2022 2:11:02 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -2.512929539519579 (T) = (0 -8.997558126602895) / Math.Sqrt((0.5279802041211661 / (13)) + (0.4049136311770991 / (43))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (43) - 2, .025) and -0.0666327608472446 = (8.435478879774873 - 8.997558126602895) / 8.435478879774873 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

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

### Run Information
Architecture x64
OS ubuntu 18.04
Baseline 8e15d9f523209caf08db57897777b7beb0516c99
Compare a78811401f3b2fa8be2d8e40b9bb1e706a9e8501
Diff Diff

Regressions in System.Memory.Span<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
BinarySearch - Duration of single invocation 123.42 ns 232.87 ns 1.89 0.12 False
BinarySearch - Duration of single invocation 265.26 ns 602.05 ns 2.27 0.05 False
BinarySearch - Duration of single invocation 192.27 ns 392.01 ns 2.04 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.Memory.Span&lt;Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Int32>.BinarySearch(Size: 4)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 232.86549322002782 > 130.10784942584974.
IsChangePoint: Marked as a change because one of 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -92.10411648993427 (T) = (0 -242.16890555123067) / Math.Sqrt((18.401486088224228 / (32)) + (23.36839303719056 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -0.898660921747129 = (127.54721118312649 - 242.16890555123067) / 127.54721118312649 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.Span&lt;Int32&gt;.BinarySearch(Size: 512)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 602.0539011140415 > 280.52139133354837.
IsChangePoint: Marked as a change because one of 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -146.24966063083585 (T) = (0 -616.8519667327967) / Math.Sqrt((52.08290462209317 / (32)) + (93.86706901668641 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -1.2623406295122575 = (272.660959488574 - 616.8519667327967) / 272.660959488574 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.Span&lt;Int32&gt;.BinarySearch(Size: 33)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 392.0134396896573 > 200.29334464728262.
IsChangePoint: Marked as a change because one of 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -116.8365116166112 (T) = (0 -401.9080846599486) / Math.Sqrt((23.300700539908995 / (32)) + (58.161850792074354 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -1.0664441594420353 = (194.49259387123658 - 401.9080846599486) / 194.49259387123658 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

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

Run Information

Architecture x64
OS ubuntu 18.04
Baseline 8e15d9f523209caf08db57897777b7beb0516c99
Compare a78811401f3b2fa8be2d8e40b9bb1e706a9e8501
Diff Diff

Regressions in System.Collections.ContainsTrue<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Span - Duration of single invocation 2.12 ms 2.73 ms 1.29 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.Collections.ContainsTrue&lt;String&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.ContainsTrue<String>.Span(Size: 512)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 2.72547523125 > 2.221137823417969.
IsChangePoint: Marked as a change because one of 10/10/2022 9:53:50 PM, 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -27.46599914110561 (T) = (0 -2954193.2773392987) / Math.Sqrt((382314027.9725292 / (32)) + (21728856253.53612 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -0.3919613366722394 = (2122324.233805147 - 2954193.2773392987) / 2122324.233805147 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

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

Run Information

Architecture x64
OS ubuntu 18.04
Baseline 8e15d9f523209caf08db57897777b7beb0516c99
Compare a78811401f3b2fa8be2d8e40b9bb1e706a9e8501
Diff Diff

Regressions in System.Memory.Span<Char>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
BinarySearch - Duration of single invocation 214.99 ns 554.70 ns 2.58 0.05 False
BinarySearch - Duration of single invocation 147.99 ns 360.01 ns 2.43 0.09 False
BinarySearch - Duration of single invocation 120.61 ns 209.94 ns 1.74 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.Memory.Span&lt;Char&gt;*'

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Char>.BinarySearch(Size: 512)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 554.7046235904704 > 225.6829815241939.
IsChangePoint: Marked as a change because one of 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -212.36767454153798 (T) = (0 -555.9615127798523) / Math.Sqrt((27.71872517479067 / (32)) + (40.20898773494149 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -1.5573492262642723 = (217.39757209147007 - 555.9615127798523) / 217.39757209147007 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.Span&lt;Char&gt;.BinarySearch(Size: 33)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 360.01497718499814 > 157.56636591687928.
IsChangePoint: Marked as a change because one of 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -179.18850983727413 (T) = (0 -365.4843095407975) / Math.Sqrt((10.263655390032032 / (32)) + (26.09307714415833 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -1.3909050667509528 = (152.86441717130208 - 365.4843095407975) / 152.86441717130208 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.Span&lt;Char&gt;.BinarySearch(Size: 4)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 209.94449239628554 > 118.5004896629177.
IsChangePoint: Marked as a change because one of 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -107.30395175745737 (T) = (0 -211.77786936904076) / Math.Sqrt((15.930965202692036 / (32)) + (8.241758953416273 / (23))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (23) - 2, .025) and -0.8826452026246367 = (112.48952754018474 - 211.77786936904076) / 112.48952754018474 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

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

Run Information

Architecture x64
OS ubuntu 18.04
Baseline 8e15d9f523209caf08db57897777b7beb0516c99
Compare a78811401f3b2fa8be2d8e40b9bb1e706a9e8501
Diff Diff

Regressions in System.Memory.Span<Byte>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
BinarySearch - Duration of single invocation 142.94 ns 364.33 ns 2.55 0.06 False
BinarySearch - Duration of single invocation 201.00 ns 547.61 ns 2.72 0.09 False
BinarySearch - Duration of single invocation 106.36 ns 208.92 ns 1.96 0.13 False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Byte>.BinarySearch(Size: 33)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 364.32956266137404 > 151.7526361487924.
IsChangePoint: Marked as a change because one of 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -223.9066786961693 (T) = (0 -364.3567886897106) / Math.Sqrt((6.443978974973584 / (32)) + (18.0110384823446 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -1.4971514541120605 = (145.90896683087607 - 364.3567886897106) / 145.90896683087607 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.Span&lt;Byte&gt;.BinarySearch(Size: 512)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 547.606166769997 > 211.4883723671189.
IsChangePoint: Marked as a change because one of 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -178.8095568017541 (T) = (0 -555.0678278070113) / Math.Sqrt((23.868390277567205 / (32)) + (73.78372263861722 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -1.7000324858131142 = (205.57820349330083 - 555.0678278070113) / 205.57820349330083 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.Span&lt;Byte&gt;.BinarySearch(Size: 4)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 208.91772494008544 > 110.86444240675891.
IsChangePoint: Marked as a change because one of 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -106.97737705734441 (T) = (0 -210.04929981663034) / Math.Sqrt((6.493846193554584 / (32)) + (17.33559678450375 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -0.960367984760207 = (107.14789337998889 - 210.04929981663034) / 107.14789337998889 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

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

Run Information

Architecture x64
OS ubuntu 18.04
Baseline 8e15d9f523209caf08db57897777b7beb0516c99
Compare a78811401f3b2fa8be2d8e40b9bb1e706a9e8501
Diff Diff

Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Of<UInt64>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ZeroBenchmark - Duration of single invocation 2.68 ns 4.46 ns 1.67 0.68 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;UInt64&gt;*'

Payloads

Baseline
Compare

Histogram

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<UInt64>.ZeroBenchmark

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 4.458591746864325 > 2.8574256362168646.
IsChangePoint: Marked as a change because one of 12/2/2022 5:21:30 AM, 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -7.319315111255898 (T) = (0 -3.758339713331883) / Math.Sqrt((0.05841348973539658 / (32)) + (0.2966709800984888 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -0.3020175064253846 = (2.886550829604582 - 3.758339713331883) / 2.886550829604582 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

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

Run Information

Architecture x64
OS ubuntu 18.04
Baseline 8e15d9f523209caf08db57897777b7beb0516c99
Compare a78811401f3b2fa8be2d8e40b9bb1e706a9e8501
Diff Diff

Regressions in System.Xml.Tests.Perf_XmlConvert

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
TimeSpan_ToString - Duration of single invocation 1.32 μs 1.44 μs 1.09 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.Xml.Tests.Perf_XmlConvert*'

Payloads

Baseline
Compare

Histogram

System.Xml.Tests.Perf_XmlConvert.TimeSpan_ToString

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 1.4396412031817611 > 1.3959923412838249.
IsChangePoint: Marked as a change because one of 10/3/2022 8:45:37 PM, 10/10/2022 9:53:50 PM, 12/7/2022 8:33:47 PM, 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -23.462578963207616 (T) = (0 -1464.454393334401) / Math.Sqrt((629.950233953485 / (32)) + (158.36975332128605 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -0.08949000467174088 = (1344.1650561774868 - 1464.454393334401) / 1344.1650561774868 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

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

Run Information

Architecture x64
OS ubuntu 18.04
Baseline 8e15d9f523209caf08db57897777b7beb0516c99
Compare a78811401f3b2fa8be2d8e40b9bb1e706a9e8501
Diff Diff

Regressions in System.Collections.ContainsFalse<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Span - Duration of single invocation 4.31 ms 5.52 ms 1.28 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.Collections.ContainsFalse&lt;String&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.ContainsFalse<String>.Span(Size: 512)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 5.524246497916668 > 4.475618135390627.
IsChangePoint: Marked as a change because one of 10/10/2022 9:53:50 PM, 12/14/2022 5:20:21 PM, 12/20/2022 4:30:45 AM falls between 12/11/2022 2:11:02 PM and 12/20/2022 4:30:45 AM.
IsRegressionStdDev: Marked as regression because -22.531819102897952 (T) = (0 -5927554.469491185) / Math.Sqrt((4154805697.238802 / (32)) + (131115029956.49214 / (24))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (24) - 2, .025) and -0.39718856155984406 = (4242487.114891326 - 5927554.469491185) / 4242487.114891326 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

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