[Perf] Windows/arm64: 4 Improvements on 4/17/2023 1:05:21 AM

[performanceautofiler]

Run Information

Name	Value
Architecture	arm64
OS	Windows 10.0.25094
Queue	AmpereWindows
Baseline	0b081118dedcbc01d445f3f56222fde9d86f3f44
Compare	e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Improvements in System.Buffers.Text.Tests.Utf8FormatterTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
FormatterUInt32 - Duration of single invocation	64.26 ns	19.76 ns	0.31	0.76	False
FormatterUInt64 - Duration of single invocation	134.55 ns	47.35 ns	0.35	0.70	False
FormatterInt64 - Duration of single invocation	71.91 ns	46.84 ns	0.65	0.67	False
FormatterInt64 - Duration of single invocation	142.66 ns	46.59 ns	0.33	0.66	False

Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Baseline
Compare

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Text.Tests.Utf8FormatterTests*'

Payloads

Baseline
Compare

Histogram

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterUInt32(value: 4294967295)

Description of detection logic

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.
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 19.75688774703081 < 65.52807876405205.
IsChangePoint: Marked as a change because one of 4/9/2023 1:38:49 AM, 4/12/2023 8:39:35 PM, 4/20/2023 12:14:19 AM falls between 4/11/2023 5:52:15 AM and 4/20/2023 12:14:19 AM.
IsImprovementStdDev: Marked as improvement because 8.37904457905373 (T) = (0 -19.40607703058195) / Math.Sqrt((90.07558160232622 / (299)) + (5.2139824000687245 / (9))) is greater than 1.9677467375895035 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (9) - 2, .975) and 0.2883450421024912 = (27.268940959695776 - 19.40607703058195) / 27.268940959695776 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterUInt64(value: 18446744073709551615)

Description of detection logic

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.
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 47.34850048992161 < 128.56444127013407.
IsChangePoint: Marked as a change because one of 4/9/2023 1:38:49 AM, 4/12/2023 8:39:35 PM, 4/20/2023 12:14:19 AM falls between 4/11/2023 5:52:15 AM and 4/20/2023 12:14:19 AM.
IsImprovementStdDev: Marked as improvement because 10.426198899617626 (T) = (0 -43.97678949906836) / Math.Sqrt((281.1188093266782 / (299)) + (34.747914766087575 / (9))) is greater than 1.9677467375895035 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (9) - 2, .975) and 0.34188164428461465 = (66.82200719240672 - 43.97678949906836) / 66.82200719240672 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterInt64(value: 9223372036854775807)

Description of detection logic

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.
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 46.83610297777648 < 68.73582276016353.
IsChangePoint: Marked as a change because one of 1/15/2023 4:47:52 PM, 1/21/2023 8:03:21 AM, 4/12/2023 8:39:35 PM, 4/20/2023 12:14:19 AM falls between 4/11/2023 5:52:15 AM and 4/20/2023 12:14:19 AM.
IsImprovementStdDev: Marked as improvement because 10.036676218355883 (T) = (0 -50.5326813061789) / Math.Sqrt((46.582587377842806 / (299)) + (41.837933293413975 / (9))) is greater than 1.9677467375895035 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (9) - 2, .975) and 0.30330631797817853 = (72.53213659054848 - 50.5326813061789) / 72.53213659054848 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterInt64(value: -9223372036854775808)

Description of detection logic

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.
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 46.59464387032763 < 127.78952377971042.
IsChangePoint: Marked as a change because one of 4/9/2023 1:38:49 AM, 4/12/2023 8:39:35 PM, 4/20/2023 12:14:19 AM falls between 4/11/2023 5:52:15 AM and 4/20/2023 12:14:19 AM.
IsImprovementStdDev: Marked as improvement because 5.738902491976262 (T) = (0 -52.162021309433946) / Math.Sqrt((223.12913558358062 / (299)) + (35.12156732040566 / (9))) is greater than 1.9677467375895035 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (9) - 2, .975) and 0.19173147593039389 = (64.53550986595376 - 52.162021309433946) / 64.53550986595376 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