[Perf] Changes at 7/12/2022 8:46:54 PM

[performanceautofiler]

Run Information

Architecture	arm64
OS	ubuntu 20.04
Baseline	246f2458fef4db3ed93d0a7f440e969f548b57c9
Compare	d5442952a7cdb6fe1eb63b7a6c977be2090959e7
Diff	Diff

Regressions in System.Numerics.Tests.Perf_BigInteger

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Parse - Duration of single invocation	2.34 μs	2.83 μs	1.21	0.01	False
Parse - Duration of single invocation	223.54 ns	244.15 ns	1.09	0.02	False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Numerics.Tests.Perf_BigInteger.Parse(numberString: 12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890)

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 2.8345713390519687 > 2.467407789468704.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/12/2022 1:46:57 PM, 7/18/2022 2:17:16 AM falls between 7/8/2022 10:31:34 AM and 7/18/2022 2:17:16 AM.
IsRegressionStdDev: Marked as regression because -20.48940785207556 (T) = (0 -2844.1071571116963) / Math.Sqrt((15159.888498570059 / (32)) + (228.38816631282882 / (23))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (23) - 2, .025) and -0.1882673868298753 = (2393.490883141513 - 2844.1071571116963) / 2393.490883141513 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.

```#### System.Numerics.Tests.Perf_BigInteger.Parse(numberString: -2147483648)

```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 244.15244489422943 > 234.45248600525997.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/12/2022 1:46:57 PM, 7/18/2022 2:17:16 AM falls between 7/8/2022 10:31:34 AM and 7/18/2022 2:17:16 AM.
IsRegressionStdDev: Marked as regression because -9.01385890266367 (T) = (0 -246.10096494312953) / Math.Sqrt((144.94341574167618 / (32)) + (8.639508073328756 / (23))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (23) - 2, .025) and -0.08828005530340018 = (226.13753118402906 - 246.10096494312953) / 226.13753118402906 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

[kunalspathak]

Related to dotnet/runtime#71968