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[Perf] Linux/arm64: 13 Regressions on 12/15/2022 1:59:35 AM #79973

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performanceautofiler bot opened this issue Dec 20, 2022 · 9 comments
Closed

[Perf] Linux/arm64: 13 Regressions on 12/15/2022 1:59:35 AM #79973

performanceautofiler bot opened this issue Dec 20, 2022 · 9 comments
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@kotlarmilos
Labels
arch-arm64 area-Codegen-Interpreter-mono
Milestone
8.0.0

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@performanceautofiler
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Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
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 375.17 ns 708.43 ns 1.89 0.41 False
BinarySearch - Duration of single invocation 280.71 ns 450.43 ns 1.60 0.36 False
BinarySearch - Duration of single invocation 172.62 ns 276.09 ns 1.60 0.29 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: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -16.34864101131347 (T) = (0 -701.8537366638262) / Math.Sqrt((517.2967075686106 / (6)) + (993.8140066292484 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.7425581401572088 = (402.7720628021668 - 701.8537366638262) / 402.7720628021668 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -34.30037615844336 (T) = (0 -454.462260663285) / Math.Sqrt((68.65607134564107 / (6)) + (58.11977721358352 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.6250755675257812 = (279.6560786125259 - 454.462260663285) / 279.6560786125259 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: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -38.82223399149353 (T) = (0 -274.40990685627867) / Math.Sqrt((17.178106665076072 / (6)) + (12.61805220630098 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.5315068050821059 = (179.17642020635176 - 274.40990685627867) / 179.17642020635176 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
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 208.91 ns 385.25 ns 1.84 0.07 False
BinarySearch - Duration of single invocation 143.06 ns 235.36 ns 1.65 0.07 False
BinarySearch - Duration of single invocation 284.23 ns 582.38 ns 2.05 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.Memory.Span&lt;Char&gt;*'

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Char>.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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -93.69696556584701 (T) = (0 -385.43725217329944) / Math.Sqrt((2.975336553099184 / (6)) + (11.97083389759816 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.8316471787080463 = (210.43203988945507 - 385.43725217329944) / 210.43203988945507 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -50.28372687441524 (T) = (0 -235.7985676566853) / Math.Sqrt((7.133574338504429 / (6)) + (10.207255951014657 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.7019661022992816 = (138.54480846482886 - 235.7985676566853) / 138.54480846482886 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: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -71.9109829916498 (T) = (0 -573.7889400405447) / Math.Sqrt((11.073216611807771 / (6)) + (55.67822751833942 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.9904955641829962 = (288.2643650984763 - 573.7889400405447) / 288.2643650984763 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
Diff Diff

Regressions in System.Collections.CtorDefaultSize<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentQueue - Duration of single invocation 598.33 ns 656.40 ns 1.10 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.Collections.CtorDefaultSize&lt;Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.CtorDefaultSize<Int32>.ConcurrentQueue

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -5.931943159828186 (T) = (0 -648.3228514216726) / Math.Sqrt((19.721063013469564 / (6)) + (252.06915899768921 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.08050097026914697 = (600.0206101251152 - 648.3228514216726) / 600.0206101251152 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
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 130.72 ns 242.04 ns 1.85 0.21 False
BinarySearch - Duration of single invocation 202.18 ns 384.11 ns 1.90 0.07 False
BinarySearch - Duration of single invocation 273.49 ns 567.59 ns 2.08 0.18 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: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -25.3595870844355 (T) = (0 -239.41677714515998) / Math.Sqrt((10.557414916240187 / (6)) + (60.86205876256012 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.774335920947268 = (134.9331737686639 - 239.41677714515998) / 134.9331737686639 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: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -70.59791292965566 (T) = (0 -381.25060346314245) / Math.Sqrt((11.609022836648672 / (6)) + (17.26160095509663 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.862007351675329 = (204.75246948950803 - 381.25060346314245) / 204.75246948950803 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -31.753957341254086 (T) = (0 -574.1759787767564) / Math.Sqrt((3.4141019069199485 / (6)) + (356.01610465733194 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -1.0982368518433254 = (273.64688513231295 - 574.1759787767564) / 273.64688513231295 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
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 4.48 ms 5.62 ms 1.26 0.23 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -4.7342813100706564 (T) = (0 -6461233.005208334) / Math.Sqrt((47653885158.61735 / (6)) + (770740916392.4843 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.4885304827963928 = (4340678.9984375 - 6461233.005208334) / 4340678.9984375 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
Diff Diff

Regressions in System.IO.Tests.Perf_File

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
WriteAllBytes - Duration of single invocation 1.44 ms 3.34 ms 2.32 0.41 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_File*'

Payloads

Baseline
Compare

Histogram

System.IO.Tests.Perf_File.WriteAllBytes(size: 1048576)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -9.329839442229577 (T) = (0 -3123871.7978472225) / Math.Sqrt((64280530850.953514 / (6)) + (59350327330.2323 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.9135195792028272 = (1632526.6967734024 - 3123871.7978472225) / 1632526.6967734024 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
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 9.00 ms 11.38 ms 1.26 0.27 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -4.699647477795573 (T) = (0 -12922271.760778401) / Math.Sqrt((96871410344.99533 / (6)) + (3177075487322.4272 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.4867698222234234 = (8691507.970920138 - 12922271.760778401) / 8691507.970920138 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
@performanceautofiler performanceautofiler bot added arm64 untriaged New issue has not been triaged by the area owner labels Dec 20, 2022
@kotlarmilos kotlarmilos mentioned this issue Dec 21, 2022
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@kg do you think that d316bb4 could have caused the regressions?

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kg commented Dec 21, 2022

None of those throw exceptions so I don't think so

@kotlarmilos kotlarmilos mentioned this issue Dec 26, 2022
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Could be related to dotnet/perf-autofiling-issues#10951

@kotlarmilos kotlarmilos self-assigned this Dec 26, 2022
@kotlarmilos kotlarmilos transferred this issue from dotnet/perf-autofiling-issues Dec 26, 2022
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I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

@kotlarmilos kotlarmilos added area-Codegen-Interpreter-mono and removed untriaged New issue has not been triaged by the area owner labels Dec 26, 2022
@kotlarmilos kotlarmilos added this to the 8.0.0 milestone Dec 26, 2022
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ghost commented Dec 26, 2022

Tagging subscribers to this area: @BrzVlad
See info in area-owners.md if you want to be subscribed.

Issue Details

Run Information

Architecture arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
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 375.17 ns 708.43 ns 1.89 0.41 False
BinarySearch - Duration of single invocation 280.71 ns 450.43 ns 1.60 0.36 False
BinarySearch - Duration of single invocation 172.62 ns 276.09 ns 1.60 0.29 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: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -16.34864101131347 (T) = (0 -701.8537366638262) / Math.Sqrt((517.2967075686106 / (6)) + (993.8140066292484 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.7425581401572088 = (402.7720628021668 - 701.8537366638262) / 402.7720628021668 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -34.30037615844336 (T) = (0 -454.462260663285) / Math.Sqrt((68.65607134564107 / (6)) + (58.11977721358352 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.6250755675257812 = (279.6560786125259 - 454.462260663285) / 279.6560786125259 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: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -38.82223399149353 (T) = (0 -274.40990685627867) / Math.Sqrt((17.178106665076072 / (6)) + (12.61805220630098 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.5315068050821059 = (179.17642020635176 - 274.40990685627867) / 179.17642020635176 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
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 208.91 ns 385.25 ns 1.84 0.07 False
BinarySearch - Duration of single invocation 143.06 ns 235.36 ns 1.65 0.07 False
BinarySearch - Duration of single invocation 284.23 ns 582.38 ns 2.05 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.Memory.Span&lt;Char&gt;*'

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Char>.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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -93.69696556584701 (T) = (0 -385.43725217329944) / Math.Sqrt((2.975336553099184 / (6)) + (11.97083389759816 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.8316471787080463 = (210.43203988945507 - 385.43725217329944) / 210.43203988945507 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -50.28372687441524 (T) = (0 -235.7985676566853) / Math.Sqrt((7.133574338504429 / (6)) + (10.207255951014657 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.7019661022992816 = (138.54480846482886 - 235.7985676566853) / 138.54480846482886 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: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -71.9109829916498 (T) = (0 -573.7889400405447) / Math.Sqrt((11.073216611807771 / (6)) + (55.67822751833942 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.9904955641829962 = (288.2643650984763 - 573.7889400405447) / 288.2643650984763 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
Diff Diff

Regressions in System.Collections.CtorDefaultSize<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentQueue - Duration of single invocation 598.33 ns 656.40 ns 1.10 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.Collections.CtorDefaultSize&lt;Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.CtorDefaultSize<Int32>.ConcurrentQueue

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -5.931943159828186 (T) = (0 -648.3228514216726) / Math.Sqrt((19.721063013469564 / (6)) + (252.06915899768921 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.08050097026914697 = (600.0206101251152 - 648.3228514216726) / 600.0206101251152 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
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 130.72 ns 242.04 ns 1.85 0.21 False
BinarySearch - Duration of single invocation 202.18 ns 384.11 ns 1.90 0.07 False
BinarySearch - Duration of single invocation 273.49 ns 567.59 ns 2.08 0.18 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: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -25.3595870844355 (T) = (0 -239.41677714515998) / Math.Sqrt((10.557414916240187 / (6)) + (60.86205876256012 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.774335920947268 = (134.9331737686639 - 239.41677714515998) / 134.9331737686639 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: 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -70.59791292965566 (T) = (0 -381.25060346314245) / Math.Sqrt((11.609022836648672 / (6)) + (17.26160095509663 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.862007351675329 = (204.75246948950803 - 381.25060346314245) / 204.75246948950803 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -31.753957341254086 (T) = (0 -574.1759787767564) / Math.Sqrt((3.4141019069199485 / (6)) + (356.01610465733194 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -1.0982368518433254 = (273.64688513231295 - 574.1759787767564) / 273.64688513231295 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
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 4.48 ms 5.62 ms 1.26 0.23 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -4.7342813100706564 (T) = (0 -6461233.005208334) / Math.Sqrt((47653885158.61735 / (6)) + (770740916392.4843 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.4885304827963928 = (4340678.9984375 - 6461233.005208334) / 4340678.9984375 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
Diff Diff

Regressions in System.IO.Tests.Perf_File

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
WriteAllBytes - Duration of single invocation 1.44 ms 3.34 ms 2.32 0.41 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_File*'

Payloads

Baseline
Compare

Histogram

System.IO.Tests.Perf_File.WriteAllBytes(size: 1048576)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -9.329839442229577 (T) = (0 -3123871.7978472225) / Math.Sqrt((64280530850.953514 / (6)) + (59350327330.2323 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.9135195792028272 = (1632526.6967734024 - 3123871.7978472225) / 1632526.6967734024 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 arm64
OS ubuntu 20.04
Baseline 4aae104908d98a46014b5d569d77d67b001c9d19
Compare c0ebf2bdcdcef90f82c67d357750c34bb56c3f4c
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 9.00 ms 11.38 ms 1.26 0.27 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 12/14/2022 12:26:48 AM, 12/19/2022 10:34:07 PM falls between 12/10/2022 11:25:25 PM and 12/19/2022 10:34:07 PM.
IsRegressionStdDev: Marked as regression because -4.699647477795573 (T) = (0 -12922271.760778401) / Math.Sqrt((96871410344.99533 / (6)) + (3177075487322.4272 / (4))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (4) - 2, .025) and -0.4867698222234234 = (8691507.970920138 - 12922271.760778401) / 8691507.970920138 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

Author: performanceautofiler[bot]
Assignees: kotlarmilos
Labels:

untriaged, area-Codegen-Interpreter-mono, refs/heads/main, Regression, arm64
Milestone: -

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This is same as dotnet/perf-autofiling-issues#10854 (where regression graphs are displayed) and is between d607096...bcef34d. The likely culprit is #78557 and (hard to believe) #79478. @tannergooding - just to confirm, there were zero diffs for Arm from it right, because the change was purely xarch change?

@kunalspathak kunalspathak mentioned this issue Jan 9, 2023
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@kunalspathak kunalspathak reopened this Jan 9, 2023
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Same here - dotnet/perf-autofiling-issues#10867

This was referenced Jan 9, 2023
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Correct, the change only impacted the xarch emitter code, nothing shared

@kotlarmilos kotlarmilos mentioned this issue Apr 4, 2023
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@BrzVlad Could have been resolved by #85528.

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