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arch-x86area-System.Memoryos-windowsruntime-coreclrspecific to the CoreCLR runtimespecific to the CoreCLR runtimetenet-performancePerformance related issuePerformance related issuetenet-performance-benchmarksIssue from performance benchmarkIssue from performance benchmark
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Description
Run Information
| Architecture | x86 |
|---|---|
| OS | Windows 10.0.18362 |
| Baseline | 285b8259af30e255980b1ebfb2ddd60ca291a83a |
| Compare | 0c64bdf3afc1fdc9166ad6c22c1990d3e0a6c509 |
| Diff | Diff |
Regressions in System.Memory.ReadOnlySpan
| Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL |
|---|---|---|---|---|---|---|---|---|---|---|
| IndexOfString - Duration of single invocation | 20.22 ns | 21.71 ns | 1.07 | 0.01 | False |
Repro
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.ReadOnlySpan*'Details
Payloads
Histogram
System.Memory.ReadOnlySpan.IndexOfString(input: "StrIng", value: "string", comparisonType: OrdinalIgnoreCase)
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 21.708424795274013 > 20.97468532055912.
IsChangePoint: Marked as a change because one of 3/17/2022 6:54:53 PM, 4/9/2022 5:43:54 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsRegressionStdDev: Marked as regression because -32.95537559884967 (T) = (0 -21.692417802325732) / Math.Sqrt((0.05449117002768166 / (42)) + (0.015887934761378314 / (15))) is less than -2.0040447832881556 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (42) + (15) - 2, .025) and -0.07962205868801316 = (20.09260335851878 - 21.692417802325732) / 20.09260335851878 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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arch-x86area-System.Memoryos-windowsruntime-coreclrspecific to the CoreCLR runtimespecific to the CoreCLR runtimetenet-performancePerformance related issuePerformance related issuetenet-performance-benchmarksIssue from performance benchmarkIssue from performance benchmark
