[Perf] Changes at 4/13/2022 4:27:35 PM

[performanceautofiler]

Run Information

Architecture	arm64
OS	Windows 10.0.19041
Baseline	f7d9d6d5f45b1ecdfa71a3faaaf26ffdca5bf468
Compare	7bac4e8fa611eb02ac1bd27b97a8570cbf321437
Diff	Diff

Regressions in System.Buffers.Binary.Tests.BinaryReadAndWriteTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ReadStructFieldByFieldUsingBitConverterBE - Duration of single invocation	16.31 ns	33.65 ns	2.06	0.19	True
ReadStructFieldByFieldUsingBitConverterLE - Duration of single invocation	8.21 ns	26.33 ns	3.21	0.36	True

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Buffers.Binary.Tests.BinaryReadAndWriteTests.ReadStructFieldByFieldUsingBitConverterBE

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 33.64747238328836 > 17.40288866827113.
IsChangePoint: Marked as a change because one of 4/13/2022 7:24:19 AM, 4/20/2022 10:05:23 PM falls between 4/12/2022 9:30:02 AM and 4/20/2022 10:05:23 PM.
IsRegressionStdDev: Marked as regression because -188.49435637299118 (T) = (0 -33.70066887314054) / Math.Sqrt((0.08624280764377616 / (14)) + (0.058053992715613185 / (27))) is less than -2.0226909200346674 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (14) + (27) - 2, .025) and -1.0403238431099189 = (16.51731365437216 - 33.70066887314054) / 16.51731365437216 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 as regression because Edge Detector said so.

```#### System.Buffers.Binary.Tests.BinaryReadAndWriteTests.ReadStructFieldByFieldUsingBitConverterLE

```log

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 26.333307744405825 > 9.079891842930811.
IsChangePoint: Marked as a change because one of 4/13/2022 7:24:19 AM, 4/20/2022 10:05:23 PM falls between 4/12/2022 9:30:02 AM and 4/20/2022 10:05:23 PM.
IsRegressionStdDev: Marked as regression because -130.0578454819914 (T) = (0 -25.736184183442838) / Math.Sqrt((0.07538438122936576 / (14)) + (0.32696421390916036 / (27))) is less than -2.0226909200346674 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (14) + (27) - 2, .025) and -2.0157555891227172 = (8.533909139145289 - 25.736184183442838) / 8.533909139145289 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 as regression because Edge Detector said so.

Docs

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