[Perf] Alpine/x64: 2 Improvements on 11/21/2022 12:41:05 AM

[performanceautofiler]

Run Information

Architecture	x64
OS	alpine 3.15
Baseline	de005e5ea950f852df5befac7c06ae2f717bfc29
Compare	9129083c2fc6ef32479168f0555875b54aee4dfb
Diff	Diff

Improvements in System.Tests.Perf_Char

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Char_ToUpperInvariant - Duration of single invocation	18.31 ns	9.85 ns	0.54	0.03	False
Char_ToLowerInvariant - Duration of single invocation	18.28 ns	9.58 ns	0.52	0.03	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Char*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Char.Char_ToUpperInvariant(input: "Hello World!")

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 9.854545753406272 < 17.390950074565623.
IsChangePoint: Marked as a change because one of 11/20/2022 11:32:49 PM, 11/22/2022 2:20:42 AM falls between 11/13/2022 1:28:42 PM and 11/22/2022 2:20:42 AM.
IsImprovementStdDev: Marked as improvement because 236.2035708777984 (T) = (0 -9.855270839529044) / Math.Sqrt((0.31698337243325064 / (299)) + (2.1812868926744174E-05 / (5))) is greater than 1.9678502273660254 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (5) - 2, .975) and 0.4388245681850611 = (17.56183589088244 - 9.855270839529044) / 17.56183589088244 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Char.Char_ToLowerInvariant(input: "Hello World!")

```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 9.57979796829724 < 17.222816177809555.
IsChangePoint: Marked as a change because one of 11/20/2022 11:32:49 PM, 11/22/2022 2:20:42 AM falls between 11/13/2022 1:28:42 PM and 11/22/2022 2:20:42 AM.
IsImprovementStdDev: Marked as improvement because 95.21615896701076 (T) = (0 -9.35421271944396) / Math.Sqrt((0.4960045563036583 / (299)) + (0.02828153343080751 / (5))) is greater than 1.9678502273660254 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (5) - 2, .975) and 0.4654106802372448 = (17.497941641623623 - 9.35421271944396) / 17.497941641623623 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository