[Perf] Changes at 6/22/2022 1:08:18 PM

[performanceautofiler]

Run Information

Architecture	arm64
OS	ubuntu 20.04
Baseline	46f53e387e0396542f7dcefa2bb7627ef3a2bf1d
Compare	c9007c8cd39a5b086a74dd5580b34311041a68ff
Diff	Diff

Improvements in System.Memory.Span<Char>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Reverse - Duration of single invocation	301.65 ns	175.65 ns	0.58	0.01	False
ToArray - Duration of single invocation	240.95 ns	95.86 ns	0.40	0.39	False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Char>.Reverse(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 175.64818553397797 < 286.7834427470707.
IsChangePoint: Marked as a change because one of 6/22/2022 6:55:40 AM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsImprovementStdDev: Marked as improvement because 222.398723679698 (T) = (0 -176.3105051211031) / Math.Sqrt((67.1070415754002 / (230)) + (0.7278274442055025 / (30))) is greater than 1.9692013862338849 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (230) + (30) - 2, .975) and 0.41490300378581507 = (301.3355157553425 - 176.3105051211031) / 301.3355157553425 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.Span&lt;Char&gt;.ToArray(Size: 512)

```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 95.85802063328127 < 225.82653357493737.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsImprovementStdDev: Marked as improvement because 160.30809681415528 (T) = (0 -94.00270968064433) / Math.Sqrt((155.35963954277528 / (232)) + (1.9826494630316438 / (28))) is greater than 1.9692013862338849 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (232) + (28) - 2, .975) and 0.5947251375419351 = (231.94803919123183 - 94.00270968064433) / 231.94803919123183 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	arm64
OS	ubuntu 20.04
Baseline	46f53e387e0396542f7dcefa2bb7627ef3a2bf1d
Compare	c9007c8cd39a5b086a74dd5580b34311041a68ff
Diff	Diff

Improvements in System.Memory.Span<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Reverse - Duration of single invocation	300.24 ns	177.19 ns	0.59	0.01	False
ToArray - Duration of single invocation	476.74 ns	179.37 ns	0.38	0.33	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.Span<Int32>*'

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Int32>.Reverse(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 177.1937005477784 < 285.2407712960055.
IsChangePoint: Marked as a change because one of 6/22/2022 6:55:40 AM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsImprovementStdDev: Marked as improvement because 207.5072353111077 (T) = (0 -177.53195424832037) / Math.Sqrt((65.4152896374923 / (229)) + (2.114361088550452 / (30))) is greater than 1.9692374962334795 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (229) + (30) - 2, .975) and 0.41090942737836866 = (301.3661438482192 - 177.53195424832037) / 301.3661438482192 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.Span&lt;Int32&gt;.ToArray(Size: 512)

```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 179.36713092750117 < 419.4004311296737.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsImprovementStdDev: Marked as improvement because 168.14281156253625 (T) = (0 -182.15318011507506) / Math.Sqrt((531.8748915254567 / (231)) + (7.769270106374217 / (28))) is greater than 1.9692374962334795 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (231) + (28) - 2, .975) and 0.5972099249950277 = (452.2285712050537 - 182.15318011507506) / 452.2285712050537 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]

dotnet/runtime#71029