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[Perf] Changes at 4/19/2022 4:39:14 PM #4876

@performanceautofiler

Description

@performanceautofiler

Run Information

Architecture x64
OS Windows 10.0.19042
Baseline 544f720704dbfcbd3daba17239d9e194360eb34d
Compare eb9dd67ce9fc64c468cf5c795fda7057310c22fc
Diff Diff

Regressions in System.Text.Json.Serialization.Tests.ReadJson<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
DeserializeFromUtf8Bytes - Duration of single invocation 90.46 ns 95.93 ns 1.06 0.03 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;*'
Details

Payloads

Baseline
Compare

Histogram

System.Text.Json.Serialization.Tests.ReadJson<Int32>.DeserializeFromUtf8Bytes


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 95.93109802871611 > 95.91787767326292.
IsChangePoint: Marked as a change because one of 2/12/2022 1:03:18 PM, 3/17/2022 6:54:53 PM, 4/19/2022 10:22:09 AM, 4/26/2022 6:18:08 AM falls between 4/17/2022 3:25:40 PM and 4/26/2022 6:18:08 AM.
IsRegressionStdDev: Marked as regression because -11.91126647080833 (T) = (0 -96.25047299345033) / Math.Sqrt((1.6864977905789762 / (22)) + (2.948181854969924 / (36))) is less than -2.0032407188469383 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (36) - 2, .025) and -0.051830822217544925 = (91.50756087421759 - 96.25047299345033) / 91.50756087421759 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

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