[Perf] Changes at 6/2/2022 5:58:32 PM

[performanceautofiler]

Run Information

Architecture	arm64
OS	ubuntu 18.04
Baseline	f5d308df7f179a2e31d3ab49cc727832ef0a4a5d
Compare	fe2c1ed058facc3c29e75c9892888fa521be586b
Diff	Diff

Improvements in System.Tests.Perf_Random

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Next_int_int_unseeded - Duration of single invocation	14.88 ns	11.22 ns	0.75	0.61	False
NextSingle_unseeded - Duration of single invocation	13.48 ns	5.39 ns	0.40	0.67	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Random*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Random.Next_int_int_unseeded

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 11.223028135159007 < 14.152378068857379.
IsChangePoint: Marked as a change because one of 5/23/2022 1:47:22 PM, 6/2/2022 10:01:42 AM, 6/9/2022 12:28:12 AM falls between 5/31/2022 10:47:41 AM and 6/9/2022 12:28:12 AM.
IsImprovementStdDev: Marked as improvement because 2.2494026759551677 (T) = (0 -12.541753270775901) / Math.Sqrt((7.85760049602601 / (299)) + (4.63166133904095 / (26))) is greater than 1.967335607330539 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (26) - 2, .975) and 0.0750082372218088 = (13.558772926914546 - 12.541753270775901) / 13.558772926914546 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Random.NextSingle_unseeded

```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 5.390949848475317 < 10.426846042209522.
IsChangePoint: Marked as a change because one of 3/14/2022 7:02:48 PM, 3/22/2022 12:26:23 PM, 5/23/2022 1:47:22 PM, 6/3/2022 1:48:25 AM, 6/9/2022 12:28:12 AM falls between 5/31/2022 10:47:41 AM and 6/9/2022 12:28:12 AM.
IsImprovementStdDev: Marked as improvement because 4.830639718685061 (T) = (0 -6.077703789229234) / Math.Sqrt((7.623833656002213 / (299)) + (2.0902197823102373 / (23))) is greater than 1.9674049737480528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (23) - 2, .975) and 0.21330648769537555 = (7.725631003902086 - 6.077703789229234) / 7.725631003902086 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

[AndyAyersMS]

Possibly from dotnet/runtime#70171 (or may be noise)