Regressions in System.Tests Perf_Random/Perf_String #65718
Description
Run Information
| Architecture | x86 |
|---|---|
| OS | Windows 10.0.18362 |
| Baseline | 973b7640aed5f6f1aa95bea10361b7792f9c1c5d |
| Compare | 053a472be0143bda0891c715d7b2ce7398538127 |
| Diff | Diff |
Regressions in System.Tests.Perf_Random
| Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL |
|---|---|---|---|---|---|---|---|---|---|---|
| NextBytes - Duration of single invocation | 8.65 μs | 9.10 μs | 1.05 | 0.01 | False |
Repro
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Random*'Details
Payloads
Histogram
System.Tests.Perf_Random.NextBytes
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 9.100986718945004 > 9.082719449533945.
IsChangePoint: Marked as a change because one of 12/25/2021 7:09:35 PM, 1/4/2022 5:49:50 PM, 1/12/2022 9:32:51 PM, 1/15/2022 8:59:33 PM, 2/17/2022 3:48:53 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsRegressionStdDev: Marked as regression because -47.18868152613224 (T) = (0 -9111.604448662174) / Math.Sqrt((641.2936168200416 / (45)) + (1820.8439410396716 / (23))) is less than -1.9965644189515832 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (45) + (23) - 2, .025) and -0.0526939328203506 = (8655.51150679723 - 9111.604448662174) / 8655.51150679723 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
| Architecture | x86 |
|---|---|
| OS | Windows 10.0.18362 |
| Baseline | 973b7640aed5f6f1aa95bea10361b7792f9c1c5d |
| Compare | 053a472be0143bda0891c715d7b2ce7398538127 |
| Diff | Diff |
Regressions in System.Tests.Perf_String
| Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL |
|---|---|---|---|---|---|---|---|---|---|---|
| PadLeft - Duration of single invocation | 12.97 ns | 13.98 ns | 1.08 | 0.05 | False |
Repro
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_String*'Details
Payloads
Histogram
System.Tests.Perf_String.PadLeft(n: 18)
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 13.977654539059156 > 13.420713179942323.
IsChangePoint: Marked as a change because one of 12/27/2021 6:47:12 AM, 2/8/2022 9:06:59 PM, 2/17/2022 3:48:53 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsRegressionStdDev: Marked as regression because -18.50134194535963 (T) = (0 -14.119958248551722) / Math.Sqrt((0.08390527944977115 / (45)) + (0.043660979535950384 / (23))) is less than -1.9965644189515832 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (45) + (23) - 2, .025) and -0.0874015417168168 = (12.985045272474764 - 14.119958248551722) / 12.985045272474764 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