[Perf] Changes at 6/9/2022 10:25:37 PM

[performanceautofiler]

Run Information

Architecture	x64
OS	alpine 3.15
Baseline	3d74b00659fec817506e2888f87936518556e01c
Compare	b2add4986c2da96e6e5fbf6f1fbb947cc7e33b42
Diff	Diff

Regressions in System.Buffers.Tests.RentReturnArrayPoolTests<Byte>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
SingleSerial - Duration of single invocation	347.00 ns	398.98 ns	1.15	0.06	False
SingleSerial - Duration of single invocation	351.41 ns	389.51 ns	1.11	0.01	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Buffers.Tests.RentReturnArrayPoolTests<Byte>*'

Payloads

Baseline
Compare

Histogram

System.Buffers.Tests.RentReturnArrayPoolTests<Byte>.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: True, UseSharedPool: True)

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 398.9810317777778 > 364.5864721.
IsChangePoint: Marked as a change because one of 4/19/2022 4:39:14 PM, 6/9/2022 8:09:33 PM, 6/14/2022 8:14:23 AM falls between 6/5/2022 6:02:14 PM and 6/14/2022 8:14:23 AM.
IsRegressionStdDev: Marked as regression because -31.442660068475327 (T) = (0 -398.7598790788809) / Math.Sqrt((22.344686681984776 / (47)) + (67.52923414007896 / (27))) is less than -1.9934635666612892 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (27) - 2, .025) and -0.15745858585151434 = (344.51330177444135 - 398.7598790788809) / 344.51330177444135 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.Buffers.Tests.RentReturnArrayPoolTests<Byte>.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: True, UseSharedPool: False)

```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 389.5050597619047 > 369.33520555.
IsChangePoint: Marked as a change because one of 4/19/2022 4:39:14 PM, 6/9/2022 8:09:33 PM, 6/14/2022 8:14:23 AM falls between 6/5/2022 6:02:14 PM and 6/14/2022 8:14:23 AM.
IsRegressionStdDev: Marked as regression because -39.35582539920453 (T) = (0 -394.38158396789214) / Math.Sqrt((26.4647561216367 / (47)) + (16.252101258625274 / (27))) is less than -1.9934635666612892 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (27) - 2, .025) and -0.12071222606636926 = (351.9026336958482 - 394.38158396789214) / 351.9026336958482 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

### Run Information

Architecture	x64
OS	alpine 3.15
Baseline	3d74b00659fec817506e2888f87936518556e01c
Compare	b2add4986c2da96e6e5fbf6f1fbb947cc7e33b42
Diff	Diff

Regressions in System.Buffers.Tests.RentReturnArrayPoolTests<Object>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
SingleSerial - Duration of single invocation	360.85 ns	395.52 ns	1.10	0.01	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Buffers.Tests.RentReturnArrayPoolTests<Object>*'

Payloads

Baseline
Compare

Histogram

System.Buffers.Tests.RentReturnArrayPoolTests<Object>.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: True, UseSharedPool: False)

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 395.5196184444445 > 374.4575122750001.
IsChangePoint: Marked as a change because one of 4/19/2022 4:39:14 PM, 6/9/2022 8:09:33 PM, 6/14/2022 8:14:23 AM falls between 6/5/2022 6:02:14 PM and 6/14/2022 8:14:23 AM.
IsRegressionStdDev: Marked as regression because -39.09670103332065 (T) = (0 -392.27071121942384) / Math.Sqrt((10.962152432335072 / (47)) + (17.796873604787404 / (27))) is less than -1.9934635666612892 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (27) - 2, .025) and -0.10393790884244192 = (355.337658103206 - 392.27071121942384) / 355.337658103206 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

Run Information

Architecture	x64
OS	alpine 3.15
Baseline	3d74b00659fec817506e2888f87936518556e01c
Compare	b2add4986c2da96e6e5fbf6f1fbb947cc7e33b42
Diff	Diff

Regressions in System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
PingPong - Duration of single invocation	11.37 ms	12.18 ms	1.07	0.08	False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests.PingPong

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 12.1840293015873 > 11.780785822014169.
IsChangePoint: Marked as a change because one of 4/19/2022 4:39:14 PM, 6/9/2022 8:09:33 PM, 6/14/2022 8:14:23 AM falls between 6/5/2022 6:02:14 PM and 6/14/2022 8:14:23 AM.
IsRegressionStdDev: Marked as regression because -17.75475897725032 (T) = (0 -12064438.563545045) / Math.Sqrt((29854903083.118393 / (47)) + (31111814297.185993 / (27))) is less than -1.9934635666612892 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (27) - 2, .025) and -0.0663482977560339 = (11313787.989283428 - 12064438.563545045) / 11313787.989283428 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

Run Information

Architecture	x64
OS	alpine 3.15
Baseline	3d74b00659fec817506e2888f87936518556e01c
Compare	b2add4986c2da96e6e5fbf6f1fbb947cc7e33b42
Diff	Diff

Regressions in System.Threading.Tasks.Tests.Perf_AsyncMethods

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Yield - Duration of single invocation	304.39 ns	364.70 ns	1.20	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.Threading.Tasks.Tests.Perf_AsyncMethods*'

Payloads

Baseline
Compare

Histogram

System.Threading.Tasks.Tests.Perf_AsyncMethods.Yield

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 364.6989068666666 > 324.636729095.
IsChangePoint: Marked as a change because one of 4/19/2022 4:39:14 PM, 6/9/2022 8:09:33 PM, 6/14/2022 8:14:23 AM falls between 6/5/2022 6:02:14 PM and 6/14/2022 8:14:23 AM.
IsRegressionStdDev: Marked as regression because -40.53743010236315 (T) = (0 -354.9352642973544) / Math.Sqrt((22.823073534584154 / (47)) + (20.672156212944223 / (27))) is less than -1.9934635666612892 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (27) - 2, .025) and -0.14646618099520453 = (309.5906972059554 - 354.9352642973544) / 309.5906972059554 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

[mrsharm]

Referenced Regression details here for the August Perf Report: #6009 (comment)