[Perf] Linux/arm64: 3 Improvements on 11/11/2022 1:18:55 PM

[performanceautofiler]

Run Information

Architecture	arm64
OS	ubuntu 20.04
Baseline	4820105ba85531da5b388e7b2e98fdcdae9ced07
Compare	2b1f57e08b26879e4fa99670df078b77c848d9e0
Diff	Diff

Improvements in System.Globalization.Tests.StringSearch

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
IsSuffix_SecondHalf - Duration of single invocation	92.07 ns	50.20 ns	0.55	0.00	False
IsPrefix_FirstHalf - Duration of single invocation	91.22 ns	49.82 ns	0.55	0.01	False
IsSuffix_DifferentLastChar - Duration of single invocation	189.84 ns	95.70 ns	0.50	0.00	False

Test Report

Repro

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

Related Issues

Regressions

• [Perf] Linux/arm64: 1 Regression on 11/11/2022 1:18:55 PM

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options: (en-US, OrdinalIgnoreCase, False))

Description of detection logic

IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 50.19995668391547 < 87.34012813990607.
IsChangePoint: Marked as a change because one of 11/11/2022 8:39:50 AM, 11/16/2022 10:12:48 PM falls between 11/8/2022 2:29:58 AM and 11/16/2022 10:12:48 PM.
IsImprovementStdDev: Marked as improvement because 301.61514710782313 (T) = (0 -50.47655528960911) / Math.Sqrt((4.23634493773315 / (299)) + (0.09424433754498725 / (16))) is greater than 1.9675720194858106 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (16) - 2, .975) and 0.458370458275048 = (93.19387404323285 - 50.47655528960911) / 93.19387404323285 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, OrdinalIgnoreCase, False))

```log

Description of detection logic

IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 49.81823476387553 < 86.92993615326341.
IsChangePoint: Marked as a change because one of 11/11/2022 8:39:50 AM, 11/16/2022 10:12:48 PM falls between 11/8/2022 2:29:58 AM and 11/16/2022 10:12:48 PM.
IsImprovementStdDev: Marked as improvement because 221.85397898364408 (T) = (0 -50.06111937478685) / Math.Sqrt((0.40955765797788185 / (299)) + (0.5408623391640835 / (16))) is greater than 1.9675720194858106 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (16) - 2, .975) and 0.4538928113230357 = (91.6690356998747 - 50.06111937478685) / 91.6690356998747 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (en-US, OrdinalIgnoreCase, False))

```log

Description of detection logic

IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 95.70292202775202 < 180.24289132728867.
IsChangePoint: Marked as a change because one of 11/11/2022 8:39:50 AM, 11/16/2022 10:12:48 PM falls between 11/8/2022 2:29:58 AM and 11/16/2022 10:12:48 PM.
IsImprovementStdDev: Marked as improvement because 849.4525575813624 (T) = (0 -95.1344659466081) / Math.Sqrt((0.201575241651471 / (299)) + (0.18810261362827524 / (16))) is greater than 1.9675720194858106 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (16) - 2, .975) and 0.49887571058831337 = (189.84205706391666 - 95.1344659466081) / 189.84205706391666 is greater than 0.05.
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