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[Perf] Windows/x64: 5 Regressions on 4/25/2023 1:57:48 PM #17321

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performanceautofiler bot opened this issue May 3, 2023 · 0 comments
Closed

[Perf] Windows/x64: 5 Regressions on 4/25/2023 1:57:48 PM #17321

performanceautofiler bot opened this issue May 3, 2023 · 0 comments
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@tannergooding
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arch-x64 branch-refs/heads/main kind-micro os-windows perf-regression runtime-coreclr

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performanceautofiler bot commented May 3, 2023 •
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Run Information

Name Value
Architecture x64
OS Windows 10.0.19042
Queue OwlWindows
Baseline 620b0db3a987bab2694a0043cacb3e2a86673df5
Compare 0fc8978b8f056647a88f7b18de8840fead97d16e
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Int16

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
TryParse - Duration of single invocation 10.51 ns 12.45 ns 1.18 0.07 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Int16*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Int16.TryParse(value: "0")

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 12.446084530191838 > 11.040420566219879.
IsChangePoint: Marked as a change because one of 3/31/2023 8:05:26 PM, 4/4/2023 4:23:54 PM, 4/12/2023 8:39:35 PM, 4/25/2023 3:46:39 AM, 5/2/2023 9:04:55 PM falls between 4/24/2023 8:06:00 AM and 5/2/2023 9:04:55 PM.
IsRegressionStdDev: Marked as regression because -10.889434611829905 (T) = (0 -11.28008557921878) / Math.Sqrt((1.1994561159881826E-05 / (17)) + (0.15349385915422473 / (31))) is less than -2.0128955989180297 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (31) - 2, .025) and -0.07288563895059384 = (10.513781869847756 - 11.28008557921878) / 10.513781869847756 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 10.0.19042
Queue OwlWindows
Baseline 620b0db3a987bab2694a0043cacb3e2a86673df5
Compare 0fc8978b8f056647a88f7b18de8840fead97d16e
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Memory.ReadOnlySpan

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
IndexOfString - Duration of single invocation 15.26 ns 17.97 ns 1.18 0.02 False
IndexOfString - Duration of single invocation 15.28 ns 17.99 ns 1.18 0.03 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

System.Memory.ReadOnlySpan.IndexOfString(input: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", value: "X", comparisonType: Ordinal)

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 17.97496277272896 > 16.031046215407592.
IsChangePoint: Marked as a change because one of 2/24/2023 9:01:57 AM, 3/6/2023 11:14:52 AM, 3/20/2023 8:31:51 AM, 4/12/2023 8:39:35 PM, 4/25/2023 3:46:39 AM, 5/2/2023 9:04:55 PM falls between 4/24/2023 8:06:00 AM and 5/2/2023 9:04:55 PM.
IsRegressionStdDev: Marked as regression because -44.229053335973205 (T) = (0 -17.63617080205035) / Math.Sqrt((0.004762153251421198 / (17)) + (0.07892719820593617 / (31))) is less than -2.0128955989180297 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (31) - 2, .025) and -0.15383119144587903 = (15.284879567131709 - 17.63617080205035) / 15.284879567131709 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.ReadOnlySpan.IndexOfString(input: "だだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだxだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだだ", value: "x", comparisonType: Ordinal)

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 17.99030825164154 > 16.027261891890575.
IsChangePoint: Marked as a change because one of 2/24/2023 9:01:57 AM, 3/6/2023 11:14:52 AM, 3/20/2023 8:31:51 AM, 4/17/2023 1:30:24 AM, 4/25/2023 3:46:39 AM, 5/2/2023 9:04:55 PM falls between 4/24/2023 8:06:00 AM and 5/2/2023 9:04:55 PM.
IsRegressionStdDev: Marked as regression because -44.64074391693153 (T) = (0 -17.62151260030449) / Math.Sqrt((0.003103943998083002 / (17)) + (0.08076050087168293 / (31))) is less than -2.0128955989180297 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (31) - 2, .025) and -0.15441031724745258 = (15.264514130747541 - 17.62151260030449) / 15.264514130747541 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 10.0.19042
Queue OwlWindows
Baseline 620b0db3a987bab2694a0043cacb3e2a86673df5
Compare 0fc8978b8f056647a88f7b18de8840fead97d16e
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 Baseline ETL Compare ETL
BitArraySetAll - Duration of single invocation 3.06 ns 4.18 ns 1.36 0.09 False

Test Report

Repro

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

Payloads

Baseline
Compare

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

Histogram

System.Collections.Tests.Perf_BitArray.BitArraySetAll(Size: 4)

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 4.181429438316637 > 3.2164136262958247.
IsChangePoint: Marked as a change because one of 2/20/2023 10:31:48 AM, 3/6/2023 11:14:52 AM, 3/14/2023 8:42:09 PM, 4/19/2023 8:38:27 PM, 4/25/2023 3:46:39 AM, 5/2/2023 9:04:55 PM falls between 4/24/2023 8:06:00 AM and 5/2/2023 9:04:55 PM.
IsRegressionStdDev: Marked as regression because -26.45467225197909 (T) = (0 -4.084790533429692) / Math.Sqrt((2.795545457532619E-05 / (17)) + (0.04449498037745368 / (30))) is less than -2.0141033888794695 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (30) - 2, .025) and -0.3325445551289032 = (3.065406344356382 - 4.084790533429692) / 3.065406344356382 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 10.0.19042
Queue OwlWindows
Baseline 620b0db3a987bab2694a0043cacb3e2a86673df5
Compare 0fc8978b8f056647a88f7b18de8840fead97d16e
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Double

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
TryParse - Duration of single invocation 114.46 ns 123.11 ns 1.08 0.11 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Double.TryParse(value: "-1.7976931348623157e+308")

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 123.11092196979477 > 120.670326357106.
IsChangePoint: Marked as a change because one of 3/5/2023 11:54:18 PM, 3/15/2023 2:53:22 PM, 3/20/2023 8:31:51 AM, 4/10/2023 1:33:42 PM, 4/25/2023 3:46:39 AM, 5/2/2023 9:04:55 PM falls between 4/24/2023 8:06:00 AM and 5/2/2023 9:04:55 PM.
IsRegressionStdDev: Marked as regression because -17.488457238130355 (T) = (0 -132.91945069711656) / Math.Sqrt((3.0885344522185765 / (17)) + (24.518819263025357 / (31))) is less than -2.0128955989180297 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (31) - 2, .025) and -0.14910477168666142 = (115.67217713491587 - 132.91945069711656) / 115.67217713491587 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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