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[Perf] Linux/x64: 4 Regressions on 10/18/2022 8:25:03 PM #9191

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performanceautofiler bot opened this issue Oct 25, 2022 · 1 comment
Open

[Perf] Linux/x64: 4 Regressions on 10/18/2022 8:25:03 PM #9191

performanceautofiler bot opened this issue Oct 25, 2022 · 1 comment

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performanceautofiler bot commented Oct 25, 2022

Run Information

Architecture x64
OS ubuntu 18.04
Baseline e8fa4a736d6bdcfbbe2c2dc1dd1303214bb97085
Compare 51e3afb2ba42609c3711cb50fb5eaa6800bc1fde
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
ReadAllBytes - Duration of single invocation 8.03 μs 14.92 μs 1.86 0.27 False
CopyTo - Duration of single invocation 31.70 μs 47.28 μs 1.49 0.14 False
CopyTo - Duration of single invocation 30.86 μs 47.50 μs 1.54 0.11 False
ReadAllBytes - Duration of single invocation 8.34 μs 14.76 μs 1.77 0.20 False

graph
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Test Report

Repro

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

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.IO.Tests.Perf_File.ReadAllBytes(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.
IsRegressionWindowed: Marked as regression because 14.924441233027592 > 8.394361535978167.
IsChangePoint: Marked as a change because one of 9/7/2022 3:19:02 AM, 9/26/2022 7:45:50 PM, 10/18/2022 9:26:37 AM, 10/25/2022 8:17:52 AM falls between 10/16/2022 1:15:28 PM and 10/25/2022 8:17:52 AM.
IsRegressionStdDev: Marked as regression because -60.71352199521391 (T) = (0 -14413.039266632813) / Math.Sqrt((93647.87851033843 / (19)) + (155029.00381426577 / (25))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (25) - 2, .025) and -0.7998669786230697 = (8007.835822211176 - 14413.039266632813) / 8007.835822211176 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.Perf_File.CopyTo(size: 4096)

```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.
IsRegressionWindowed: Marked as regression because 47.277597728413646 > 33.13777048314447.
IsChangePoint: Marked as a change because one of 9/7/2022 3:19:02 AM, 10/18/2022 9:26:37 AM, 10/25/2022 8:17:52 AM falls between 10/16/2022 1:15:28 PM and 10/25/2022 8:17:52 AM.
IsRegressionStdDev: Marked as regression because -49.58415169741604 (T) = (0 -46979.61434923627) / Math.Sqrt((235323.85979796408 / (19)) + (2144672.296925887 / (25))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (25) - 2, .025) and -0.4940878695265783 = (31443.675641461694 - 46979.61434923627) / 31443.675641461694 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.Perf_File.CopyTo(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.
IsRegressionWindowed: Marked as regression because 47.500685832616185 > 32.42837908023321.
IsChangePoint: Marked as a change because one of 9/7/2022 8:46:47 AM, 10/18/2022 9:26:37 AM, 10/25/2022 8:17:52 AM falls between 10/16/2022 1:15:28 PM and 10/25/2022 8:17:52 AM.
IsRegressionStdDev: Marked as regression because -65.50936510262702 (T) = (0 -46525.14556955652) / Math.Sqrt((274538.68858025665 / (20)) + (988162.0125911582 / (25))) is less than -2.016692199226234 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (25) - 2, .025) and -0.4813271571741907 = (31407.74496992873 - 46525.14556955652) / 31407.74496992873 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.Perf_File.ReadAllBytes(size: 4096)

```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.
IsRegressionWindowed: Marked as regression because 14.759140554764166 > 8.903511269249764.
IsChangePoint: Marked as a change because one of 9/7/2022 8:46:47 AM, 9/26/2022 7:45:50 PM, 10/18/2022 9:26:37 AM, 10/25/2022 8:17:52 AM falls between 10/16/2022 1:15:28 PM and 10/25/2022 8:17:52 AM.
IsRegressionStdDev: Marked as regression because -52.64045446409999 (T) = (0 -14967.03827386326) / Math.Sqrt((164059.0304484875 / (19)) + (138689.80489963476 / (24))) is less than -2.019540970439573 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (24) - 2, .025) and -0.7308458599639482 = (8647.239260331944 - 14967.03827386326) / 8647.239260331944 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.
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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