[Perf] Changes at 5/23/2022 7:50:08 PM

[performanceautofiler]

Run Information

Architecture	x64
OS	ubuntu 18.04
Baseline	a0ff92c8d3cb3cb3b35357117e629cdd19f7080a
Compare	cd6512d071d0a32c90fa81a64abd258d707cfa5f
Diff	Diff

Improvements in Span.IndexerBench

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
KnownSizeCtor2 - Duration of single invocation	511.92 ns	392.38 ns	0.77	0.00	False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

Span.IndexerBench.KnownSizeCtor2(length: 1024)

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 392.3849264384877 < 486.29085751591896.
IsChangePoint: Marked as a change because one of 5/23/2022 3:43:39 PM, 5/24/2022 7:58:36 AM falls between 5/15/2022 6:57:22 PM and 5/24/2022 7:58:36 AM.
IsImprovementStdDev: Marked as improvement because 856.2952791052381 (T) = (0 -392.5221603750245) / Math.Sqrt((0.1659385220532533 / (299)) + (0.037666306674774025 / (2))) is greater than 1.9679296690655894 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (2) - 2, .975) and 0.23298633544649552 = (511.753803765048 - 392.5221603750245) / 511.753803765048 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

### Run Information

Architecture	x64
OS	ubuntu 18.04
Baseline	a0ff92c8d3cb3cb3b35357117e629cdd19f7080a
Compare	cd6512d071d0a32c90fa81a64abd258d707cfa5f
Diff	Diff

Improvements in System.Memory.Span<Byte>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Fill - Duration of single invocation	5.37 ns	4.23 ns	0.79	0.35	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.Span<Byte>*'

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Byte>.Fill(Size: 512)

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 4.225107000151447 < 4.640476446476955.
IsChangePoint: Marked as a change because one of 4/21/2022 3:06:05 PM, 4/22/2022 2:26:33 AM, 5/20/2022 9:09:19 PM, 5/23/2022 3:43:39 PM, 5/24/2022 7:58:36 AM falls between 5/15/2022 6:57:22 PM and 5/24/2022 7:58:36 AM.
IsImprovementStdDev: Marked as improvement because 8.804313967751114 (T) = (0 -4.176020078575413) / Math.Sqrt((1.4641128487692439 / (299)) + (0.004819051739623447 / (2))) is greater than 1.9679296690655894 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (2) - 2, .975) and 0.15269333125634577 = (4.928581625313319 - 4.176020078575413) / 4.928581625313319 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

[kunalspathak]

possibly by dotnet/runtime#69247 or PGO