Regressions in System.Tests.Perf_Array for ARM64

[performanceautofiler]

Run Information

Architecture	arm64
OS	Windows 10.0.19041
Baseline	b42adaddff9047e32c9d7f4145746dbb579758f2
Compare	ae9f1ca5717045293f726877de18a8f6cf792c5b
Diff	Diff

Regressions in System.Tests.Perf_Array

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Reverse - Duration of single invocation	86.87 ns	141.59 ns	1.63	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.Tests.Perf_Array*'

Details

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Array.Reverse

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 141.5902091930573 > 91.26066230361728.
IsChangePoint: Marked as a change because one of 4/26/2022 6:18:08 AM, 4/27/2022 8:46:50 AM falls between 4/19/2022 6:32:34 PM and 4/27/2022 8:46:50 AM.
IsRegressionStdDev: Marked as regression because -131.54038213427378 (T) = (0 -142.15692031098698) / Math.Sqrt((0.22062057934126858 / (35)) + (0.5115350008666868 / (3))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (3) - 2, .025) and -0.6369040400935537 = (86.84499324887872 - 142.15692031098698) / 86.84499324887872 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
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	Windows 10.0.19041
Baseline	b42adaddff9047e32c9d7f4145746dbb579758f2
Compare	ae9f1ca5717045293f726877de18a8f6cf792c5b
Diff	Diff

Regressions 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	171.70 ns	286.87 ns	1.67	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.Memory.Span<Char>*'

Details

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Char>.Reverse(Size: 512)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 286.8743261808392 > 180.59975390646315.
IsChangePoint: Marked as a change because one of 4/26/2022 6:18:08 AM, 4/27/2022 8:46:50 AM falls between 4/19/2022 6:32:34 PM and 4/27/2022 8:46:50 AM.
IsRegressionStdDev: Marked as regression because -227.30060518890855 (T) = (0 -286.39017242473375) / Math.Sqrt((1.9498782004738482 / (35)) + (0.5830247902076874 / (3))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (3) - 2, .025) and -0.6580417757183983 = (172.72795934266873 - 286.39017242473375) / 172.72795934266873 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
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	Windows 10.0.19041
Baseline	b42adaddff9047e32c9d7f4145746dbb579758f2
Compare	ae9f1ca5717045293f726877de18a8f6cf792c5b
Diff	Diff

Regressions in System.Memory.Span<Byte>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Reverse - Duration of single invocation	173.49 ns	236.54 ns	1.36	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.Memory.Span<Byte>*'

Details

Payloads

Baseline
Compare

Histogram

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

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 236.54396131211246 > 182.10393200384888.
IsChangePoint: Marked as a change because one of 4/26/2022 6:18:08 AM, 4/27/2022 8:46:50 AM falls between 4/19/2022 6:32:34 PM and 4/27/2022 8:46:50 AM.
IsRegressionStdDev: Marked as regression because -126.16357924033326 (T) = (0 -236.0946824240651) / Math.Sqrt((1.7492659048874621 / (35)) + (0.6067386409791822 / (3))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (3) - 2, .025) and -0.3668204454251107 = (172.73277058028975 - 236.0946824240651) / 172.73277058028975 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
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]

Looks like #64412.