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Regressions in System.Net.Http.Tests.SocketsHttpHandlerPerfTest #66343

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Description

@performanceautofiler
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Run Information

Architecture x64
OS Windows 10.0.18362
Baseline 9053aa1e66ab7c1af7a14e649fb0bf0b0c501cde
Compare 136b312bc4b471c92eeaf25ded3d0b4dec3afd13
Diff Diff

Regressions in System.Net.Http.Tests.SocketsHttpHandlerPerfTest

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Get - Duration of single invocation 121.45 μs 202.73 μs 1.67 0.54 False
Get_EnumerateHeaders_Unvalidated - Duration of single invocation 134.39 μs 183.62 μs 1.37 0.47 False
Get_EnumerateHeaders_Validated - Duration of single invocation 48.81 μs 54.92 μs 1.13 0.00 True

graph
graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Net.Http.Tests.SocketsHttpHandlerPerfTest*'
Details

Payloads

Baseline
Compare

Histogram

System.Net.Http.Tests.SocketsHttpHandlerPerfTest.Get(ssl: False, chunkedResponse: True, responseLength: 1)


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 202.73157894736843 > 125.80243421052631.
IsChangePoint: Marked as a change because one of 3/4/2022 3:52:45 PM, 3/8/2022 2:08:40 PM falls between 2/27/2022 3:52:50 PM and 3/8/2022 2:08:40 PM.
IsRegressionStdDev: Marked as regression because -18.274347728716307 (T) = (0 -184167.39422084624) / Math.Sqrt((181388575.9425565 / (46)) + (145445285.78867027 / (17))) is less than -1.9996235849941724 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (46) + (17) - 2, .025) and -0.5403656486044143 = (119560.8292016273 - 184167.39422084624) / 119560.8292016273 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.Net.Http.Tests.SocketsHttpHandlerPerfTest.Get_EnumerateHeaders_Unvalidated(ssl: False, chunkedResponse: True, responseLength: 1)

```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 183.62 > 127.86513157894737.
IsChangePoint: Marked as a change because one of 3/4/2022 3:52:45 PM, 3/8/2022 2:08:40 PM falls between 2/27/2022 3:52:50 PM and 3/8/2022 2:08:40 PM.
IsRegressionStdDev: Marked as regression because -12.829534994295162 (T) = (0 -179896.05263157896) / Math.Sqrt((234842204.29634947 / (46)) + (252142676.98554683 / (17))) is less than -1.9996235849941724 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (46) + (17) - 2, .025) and -0.46721217324052555 = (122610.79611563987 - 179896.05263157896) / 122610.79611563987 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.Net.Http.Tests.SocketsHttpHandlerPerfTest.Get_EnumerateHeaders_Validated(ssl: True, chunkedResponse: False, responseLength: 1)

```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 54.91753515430563 > 52.055332915890716.
IsChangePoint: Marked as a change because one of 3/4/2022 3:52:45 PM, 3/8/2022 2:08:40 PM falls between 2/27/2022 3:52:50 PM and 3/8/2022 2:08:40 PM.
IsRegressionStdDev: Marked as regression because -35.43027244872814 (T) = (0 -55389.85383918084) / Math.Sqrt((435095.83502289344 / (46)) + (291375.36021432554 / (17))) is less than -1.9996235849941724 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (46) + (17) - 2, .025) and -0.11647133480658584 = (49611.532434709945 - 55389.85383918084) / 49611.532434709945 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.

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