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[Perf] Windows/x64: 6 Regressions on 10/10/2023 7:44:23 AM #23165

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performanceautofiler bot opened this issue Oct 17, 2023 · 0 comments
Open

[Perf] Windows/x64: 6 Regressions on 10/10/2023 7:44:23 AM #23165

performanceautofiler bot opened this issue Oct 17, 2023 · 0 comments
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arch-x64 branch-refs/heads/main kind-micro os-windows perf-regression PGO Applied if there were any profile guided optimization updates in the observed interval. runtime-coreclr untriaged

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performanceautofiler bot commented Oct 17, 2023 •
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Run Information

Name Value
Architecture x64
OS Windows 10.0.18362
Queue TigerWindows
Baseline 26a809adb958c604ac773d39f2c253cf0dd12e1e
Compare 715293eeeddf76593679fba7ab8cfd451980225b
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.IO.Tests.StringReaderReadLineTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
3.43 μs 3.68 μs 1.07 0.00 False
3.47 μs 3.74 μs 1.08 0.00 False

graph
graph
Test Report

Repro

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

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

Payloads

Baseline
Compare

System.IO.Tests.StringReaderReadLineTests.ReadLineAsync(LineLengthRange: [ 129, 1024])

ETL Files

Histogram

Description of detection logic

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.
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 3.6797331074280346 > 3.6511941416703837.
IsChangePoint: Marked as a change because one of 8/31/2023 7:00:06 PM, 10/9/2023 8:09:24 PM, 10/16/2023 8:09:45 PM falls between 10/8/2023 1:17:11 AM and 10/16/2023 8:09:45 PM.
IsRegressionStdDev: Marked as regression because -15.9399431433237 (T) = (0 -3673.124544088454) / Math.Sqrt((1500.3898781482549 / (13)) + (733.249409247721 / (15))) is less than -2.055529438636913 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (15) - 2, .025) and -0.058900972755137504 = (3468.808357528854 - 3673.124544088454) / 3468.808357528854 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.

JIT Disasms

System.IO.Tests.StringReaderReadLineTests.ReadLineAsync(LineLengthRange: [ 0, 1024])

ETL Files

Histogram

Description of detection logic

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.
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 3.744333708320403 > 3.666132394744896.
IsChangePoint: Marked as a change because one of 8/29/2023 4:22:52 PM, 10/9/2023 8:09:24 PM, 10/16/2023 8:09:45 PM falls between 10/8/2023 1:17:11 AM and 10/16/2023 8:09:45 PM.
IsRegressionStdDev: Marked as regression because -13.496087430852382 (T) = (0 -3745.127632646673) / Math.Sqrt((2956.3630162260233 / (13)) + (859.3120096210708 / (15))) is less than -2.055529438636913 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (15) - 2, .025) and -0.06474093231419437 = (3517.4073983487315 - 3745.127632646673) / 3517.4073983487315 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.

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name Value
Architecture x64
OS Windows 10.0.18362
Queue TigerWindows
Baseline 26a809adb958c604ac773d39f2c253cf0dd12e1e
Compare 715293eeeddf76593679fba7ab8cfd451980225b
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.Tests.Perf_BitArray

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
13.36 ns 18.22 ns 1.36 0.41 False

graph
Test Report

Repro

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

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

Payloads

Baseline
Compare

System.Collections.Tests.Perf_BitArray.BitArrayCopyToIntArray(Size: 512)

ETL Files

Histogram

Description of detection logic

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.
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 18.215082995589462 > 13.958034047410479.
IsChangePoint: Marked as a change because one of 10/9/2023 8:09:24 PM, 10/16/2023 8:09:45 PM falls between 10/8/2023 1:17:11 AM and 10/16/2023 8:09:45 PM.
IsRegressionStdDev: Marked as regression because -7.48197806266343 (T) = (0 -17.15713199156262) / Math.Sqrt((1.2449830823430332 / (13)) + (1.3523487559187493 / (15))) is less than -2.055529438636913 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (15) - 2, .025) and -0.23158107877214745 = (13.930980499203356 - 17.15713199156262) / 13.930980499203356 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.

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name Value
Architecture x64
OS Windows 10.0.18362
Queue TigerWindows
Baseline 26a809adb958c604ac773d39f2c253cf0dd12e1e
Compare 715293eeeddf76593679fba7ab8cfd451980225b
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Byte>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
48.19 ns 55.23 ns 1.15 0.37 False

graph
Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Runtime.Intrinsics.Tests.Perf_Vector128Of&lt;Byte&gt;*'

Payloads

Baseline
Compare

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Byte>.GetHashCodeBenchmark

ETL Files

Histogram

Description of detection logic

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.
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 55.232547622928145 > 52.09445709263358.
IsChangePoint: Marked as a change because one of 7/4/2023 2:03:12 AM, 8/8/2023 9:37:01 AM, 8/29/2023 12:26:31 AM, 9/19/2023 8:08:41 AM, 10/9/2023 8:09:24 PM, 10/16/2023 8:09:45 PM falls between 10/8/2023 1:17:11 AM and 10/16/2023 8:09:45 PM.
IsRegressionStdDev: Marked as regression because -6.318965330265581 (T) = (0 -54.27940310544091) / Math.Sqrt((2.028825697464352 / (13)) + (6.131310159007554 / (15))) is less than -2.055529438636913 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (15) - 2, .025) and -0.09587999203157292 = (49.53042623290917 - 54.27940310544091) / 49.53042623290917 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.

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name Value
Architecture x64
OS Windows 10.0.18362
Queue TigerWindows
Baseline 26a809adb958c604ac773d39f2c253cf0dd12e1e
Compare 715293eeeddf76593679fba7ab8cfd451980225b
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_HashCode

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
1.96 μs 2.42 μs 1.24 0.29 False

graph
Test Report

Repro

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

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

Payloads

Baseline
Compare

System.Tests.Perf_HashCode.Add

ETL Files

Histogram

Description of detection logic

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.
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 2.42433084254205 > 2.087896089669573.
IsChangePoint: Marked as a change because one of 8/28/2023 1:23:07 PM, 9/19/2023 8:08:41 AM, 10/9/2023 8:09:24 PM, 10/16/2023 8:09:45 PM falls between 10/8/2023 1:17:11 AM and 10/16/2023 8:09:45 PM.
IsRegressionStdDev: Marked as regression because -20.199205170221727 (T) = (0 -2431.377105446469) / Math.Sqrt((4524.633265479553 / (13)) + (1381.129117360481 / (15))) is less than -2.055529438636913 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (15) - 2, .025) and -0.21107718851649215 = (2007.6153101560622 - 2431.377105446469) / 2007.6153101560622 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.

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name Value
Architecture x64
OS Windows 10.0.18362
Queue TigerWindows
Baseline 26a809adb958c604ac773d39f2c253cf0dd12e1e
Compare 715293eeeddf76593679fba7ab8cfd451980225b
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Int16>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
24.29 ns 26.02 ns 1.07 0.36 False

graph
Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Runtime.Intrinsics.Tests.Perf_Vector128Of&lt;Int16&gt;*'

Payloads

Baseline
Compare

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Int16>.GetHashCodeBenchmark

ETL Files

Histogram

Description of detection logic

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.
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 26.022881736105504 > 25.11314964650005.
IsChangePoint: Marked as a change because one of 6/19/2023 6:37:24 PM, 6/30/2023 8:34:57 AM, 7/12/2023 7:15:00 AM, 8/14/2023 10:44:26 PM, 8/28/2023 1:23:07 PM, 9/19/2023 8:08:41 AM, 10/9/2023 8:09:24 PM, 10/16/2023 8:09:45 PM falls between 10/8/2023 1:17:11 AM and 10/16/2023 8:09:45 PM.
IsRegressionStdDev: Marked as regression because -12.650651592407335 (T) = (0 -26.881991607361133) / Math.Sqrt((0.25144052392545074 / (13)) + (0.4694138182764917 / (15))) is less than -2.055529438636913 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (15) - 2, .025) and -0.11843839160508726 = (24.03529046314513 - 26.881991607361133) / 24.03529046314513 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.

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository
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