[Perf] Linux/x64: 2 Regressions on 5/9/2023 7:00:05 PM #17837
Description
Run Information
| Name | Value |
|---|---|
| Architecture | x64 |
| OS | ubuntu 18.04 |
| Queue | TigerUbuntu |
| Baseline | 05a3d360d6079db3cb64636fcdf99f832a58c1d2 |
| Compare | 0b5f137ab0eea82f59d22da94a0b21f0bc598f16 |
| Diff | Diff |
| Configs | AOT:true, CompilationMode:wasm, RunKind:micro |
Regressions in System.Buffers.Text.Tests.Base64Tests
| Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL |
|---|---|---|---|---|---|---|---|---|---|---|
| Base64Decode - Duration of single invocation | 781.33 ns | 840.93 ns | 1.08 | 0.00 | True | |||||
| Base64DecodeDestinationTooSmall - Duration of single invocation | 786.23 ns | 843.29 ns | 1.07 | 0.00 | True |
Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md
Payloads
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Text.Tests.Base64Tests*'Payloads
Histogram
System.Buffers.Text.Tests.Base64Tests.Base64Decode(NumberOfBytes: 1000)
Description of detection logic
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.
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 840.9349449868957 > 818.4155373453012.
IsChangePoint: Marked as a change because one of 5/8/2023 3:52:55 PM, 5/16/2023 12:30:38 AM falls between 5/7/2023 5:11:33 AM and 5/16/2023 12:30:38 AM.
IsRegressionStdDev: Marked as regression because -99.6258450853147 (T) = (0 -838.4983552554651) / Math.Sqrt((3.140384144129996 / (15)) + (2.1517134653950394 / (16))) is less than -2.0452296421282288 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (15) + (16) - 2, .025) and -0.07488793289483389 = (780.0797921298304 - 838.4983552554651) / 780.0797921298304 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 as regression because Edge Detector said so.
JIT Disasms
System.Buffers.Text.Tests.Base64Tests.Base64DecodeDestinationTooSmall(NumberOfBytes: 1000)
Description of detection logic
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.
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 843.2885199331909 > 821.4772654526043.
IsChangePoint: Marked as a change because one of 5/8/2023 3:52:55 PM, 5/16/2023 12:30:38 AM falls between 5/7/2023 5:11:33 AM and 5/16/2023 12:30:38 AM.
IsRegressionStdDev: Marked as regression because -71.08177233891763 (T) = (0 -838.2731200488503) / Math.Sqrt((6.329100373570455 / (15)) + (3.6614250867706284 / (16))) is less than -2.0452296421282288 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (15) + (16) - 2, .025) and -0.0734281313790225 = (780.9308285706367 - 838.2731200488503) / 780.9308285706367 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 as regression because Edge Detector said so.
JIT Disasms
Docs
Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository