[Perf] Linux/arm64: 2 Improvements on 9/1/2022 1:51:24 AM

[performanceautofiler]

Run Information

Architecture	arm64
OS	ubuntu 20.04
Baseline	51191575ccced7759ab2b82c7348a488f56d6f52
Compare	a919d611e832bfee46fc34762f5ded2006c9f16d
Diff	Diff

Improvements 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	2.80 μs	2.15 μs	0.77	0.02	False
Parse - Duration of single invocation	239.90 ns	210.66 ns	0.88	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

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 2.153642807151492 < 2.661708473197301.
IsChangePoint: Marked as a change because one of 7/12/2022 1:46:57 PM, 8/31/2022 7:50:47 PM, 9/8/2022 4:04:25 AM falls between 8/30/2022 2:13:40 PM and 9/8/2022 4:04:25 AM.
IsImprovementStdDev: Marked as improvement because 39.48587572166334 (T) = (0 -2157.327117102497) / Math.Sqrt((47534.5384313527 / (299)) + (1289.0687260642922 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.20641388516172038 = (2718.45370875992 - 2157.327117102497) / 2718.45370875992 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

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

```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 210.66429129471888 < 227.7065454179023.
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, 8/31/2022 7:50:47 PM, 9/8/2022 4:04:25 AM falls between 8/30/2022 2:13:40 PM and 9/8/2022 4:04:25 AM.
IsImprovementStdDev: Marked as improvement because 36.464399532936504 (T) = (0 -211.92397938566538) / Math.Sqrt((139.45854224895461 / (299)) + (3.4902918690421956 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.11610108584813887 = (239.7604250809783 - 211.92397938566538) / 239.7604250809783 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