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[Perf] Windows/arm64: 7 Regressions on 10/6/2023 11:50:29 PM #23009

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performanceautofiler bot opened this issue Oct 12, 2023 · 0 comments
Closed

[Perf] Windows/arm64: 7 Regressions on 10/6/2023 11:50:29 PM #23009

performanceautofiler bot opened this issue Oct 12, 2023 · 0 comments
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arch-arm64 branch-refs/heads/main kind-micro os-windows perf-regression runtime-coreclr untriaged

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performanceautofiler bot commented Oct 12, 2023 •
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Run Information

Name Value
Architecture arm64
OS Windows 10.0.19041
Queue SurfaceWindows
Baseline f55549222e4dc1469190caa56e03361ee46208ca
Compare f21a2666c577306e437f80fe934d76cdb15072a5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Memory.Span<Char>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
55.29 ns 59.21 ns 1.07 0.05 False
65.64 ns 70.44 ns 1.07 0.04 False
41.76 ns 45.78 ns 1.10 0.05 False

graph
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.Memory.Span&lt;Char&gt;*'

Payloads

Baseline
Compare

System.Memory.Span<Char>.IndexOfAnyFourValues(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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 4/27/2023 10:53:57 PM, 9/7/2023 2:36:34 PM, 10/6/2023 9:14:38 AM, 10/11/2023 7:15:38 PM falls between 10/2/2023 7:07:56 PM and 10/11/2023 7:15:38 PM.
IsRegressionStdDev: Marked as regression because -44.36398583807544 (T) = (0 -59.49421862026833) / Math.Sqrt((0.02229485906835257 / (8)) + (0.03768919058708667 / (6))) is less than -2.1788128296721325 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (8) + (6) - 2, .025) and -0.07643810850342546 = (55.26952097876141 - 59.49421862026833) / 55.26952097876141 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.Memory.Span<Char>.IndexOfAnyFiveValues(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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 4/6/2023 11:23:56 PM, 4/12/2023 8:39:35 PM, 4/28/2023 7:22:08 PM, 7/1/2023 8:07:46 AM, 7/4/2023 5:42:46 PM, 8/3/2023 11:36:41 PM, 8/11/2023 2:10:11 AM, 8/22/2023 6:29:15 PM, 8/30/2023 5:24:30 PM, 9/7/2023 2:36:34 PM, 10/6/2023 9:14:38 AM, 10/11/2023 7:15:38 PM falls between 10/2/2023 7:07:56 PM and 10/11/2023 7:15:38 PM.
IsRegressionStdDev: Marked as regression because -43.07857917896051 (T) = (0 -70.64327403053173) / Math.Sqrt((0.01505380600454327 / (8)) + (0.06899592683225172 / (6))) is less than -2.1788128296721325 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (8) + (6) - 2, .025) and -0.07589355646868548 = (65.66009583921868 - 70.64327403053173) / 65.66009583921868 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.Memory.Span<Char>.IndexOfAnyThreeValues(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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 4/6/2023 11:23:56 PM, 8/22/2023 6:29:15 PM, 8/30/2023 5:24:30 PM, 9/7/2023 2:36:34 PM, 10/6/2023 9:14:38 AM, 10/11/2023 7:15:38 PM falls between 10/2/2023 7:07:56 PM and 10/11/2023 7:15:38 PM.
IsRegressionStdDev: Marked as regression because -13.912839025205253 (T) = (0 -45.887142638983526) / Math.Sqrt((0.3026430153215186 / (8)) + (0.21592878121798295 / (6))) is less than -2.1788128296721325 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (8) + (6) - 2, .025) and -0.08977247718094054 = (42.10708528599098 - 45.887142638983526) / 42.10708528599098 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 arm64
OS Windows 10.0.19041
Queue SurfaceWindows
Baseline f55549222e4dc1469190caa56e03361ee46208ca
Compare f21a2666c577306e437f80fe934d76cdb15072a5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Perf_Ascii

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
23.06 ns 26.48 ns 1.15 0.16 False
22.90 ns 26.74 ns 1.17 0.10 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.Text.Perf_Ascii*'

Payloads

Baseline
Compare

System.Text.Perf_Ascii.ToUpper_Bytes_Chars(Size: 128)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 5/23/2023 1:41:12 PM, 6/16/2023 8:17:59 AM, 7/12/2023 7:14:29 PM, 9/7/2023 2:36:34 PM, 10/6/2023 9:14:38 AM, 10/11/2023 7:15:38 PM falls between 10/2/2023 7:07:56 PM and 10/11/2023 7:15:38 PM.
IsRegressionStdDev: Marked as regression because -16.85444144985588 (T) = (0 -26.904588857885106) / Math.Sqrt((0.2025858974502106 / (8)) + (0.2153057379640555 / (6))) is less than -2.1788128296721325 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (8) + (6) - 2, .025) and -0.18341132178930836 = (22.734773922228143 - 26.904588857885106) / 22.734773922228143 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.Text.Perf_Ascii.ToLower_Bytes_Chars(Size: 128)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 5/23/2023 1:41:12 PM, 6/16/2023 8:17:59 AM, 7/14/2023 7:13:27 PM, 9/7/2023 2:36:34 PM, 10/6/2023 9:14:38 AM, 10/11/2023 7:15:38 PM falls between 10/2/2023 7:07:56 PM and 10/11/2023 7:15:38 PM.
IsRegressionStdDev: Marked as regression because -15.52075504852178 (T) = (0 -27.262186097007135) / Math.Sqrt((0.23825357385089044 / (8)) + (0.21697383759158906 / (6))) is less than -2.1788128296721325 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (8) + (6) - 2, .025) and -0.17123099344749373 = (23.276523802329944 - 27.262186097007135) / 23.276523802329944 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 arm64
OS Windows 10.0.19041
Queue SurfaceWindows
Baseline f55549222e4dc1469190caa56e03361ee46208ca
Compare f21a2666c577306e437f80fe934d76cdb15072a5
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in PerfLabTests.LowLevelPerf

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
202.17 μs 280.01 μs 1.38 0.10 True
199.38 μs 281.37 μs 1.41 0.03 True

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 'PerfLabTests.LowLevelPerf*'

Payloads

Baseline
Compare

PerfLabTests.LowLevelPerf.GenericClassGenericStaticMethod

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 10/6/2023 9:14:38 AM, 10/11/2023 7:15:38 PM falls between 10/2/2023 7:07:56 PM and 10/11/2023 7:15:38 PM.
IsRegressionStdDev: Marked as regression because -11.249500863603572 (T) = (0 -281636.0353875795) / Math.Sqrt((13140504.07753176 / (8)) + (264195011.29345506 / (6))) is less than -2.1788128296721325 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (8) + (6) - 2, .025) and -0.3697706937023315 = (205608.1625066382 - 281636.0353875795) / 205608.1625066382 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.

JIT Disasms

PerfLabTests.LowLevelPerf.GenericClassGenericInstanceMethod

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 10/6/2023 9:14:38 AM, 10/11/2023 7:15:38 PM falls between 10/2/2023 7:07:56 PM and 10/11/2023 7:15:38 PM.
IsRegressionStdDev: Marked as regression because -30.907365521886913 (T) = (0 -277359.26883759315) / Math.Sqrt((9567864.904788313 / (8)) + (26246914.261993103 / (6))) is less than -2.1788128296721325 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (8) + (6) - 2, .025) and -0.35686261683333503 = (204412.19722369395 - 277359.26883759315) / 204412.19722369395 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.

JIT Disasms

Docs

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