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[Perf] Linux/x64: 11 Regressions on 9/18/2023 2:28:59 PM #22146

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performanceautofiler bot opened this issue Sep 26, 2023 · 1 comment
Open

[Perf] Linux/x64: 11 Regressions on 9/18/2023 2:28:59 PM #22146

performanceautofiler bot opened this issue Sep 26, 2023 · 1 comment
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arch-x64 branch-refs/heads/main kind-micro os-linux perf-regression runtime-coreclr

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performanceautofiler bot commented Sep 26, 2023 •
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Run Information

Name Value
Architecture x64
OS ubuntu 22.04
Queue TigerUbuntu
Baseline bc97b0aa42d0d173a6c9d0542f78f6825a1efb49
Compare e1ca02f9eccac5531dafa5d506b0846d9bd8ad6b
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Memory.Span<Byte>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
6.90 ns 8.37 ns 1.21 0.35 False
9.06 ns 11.46 ns 1.27 0.36 False
2.58 ns 4.19 ns 1.62 0.12 False
4.55 ns 5.95 ns 1.31 0.09 False
9.81 ns 11.27 ns 1.15 0.23 False
7.29 ns 12.24 ns 1.68 0.36 False
2.03 ns 3.04 ns 1.50 0.30 False

graph
graph
graph
graph
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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Byte&gt;*'

Payloads

Baseline
Compare

System.Memory.Span<Byte>.LastIndexOfAnyValues(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 8.37347099299737 > 7.935672079442623.
IsChangePoint: Marked as a change because one of 9/18/2023 9:14:49 AM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -4.285211075883153 (T) = (0 -8.34537449164666) / Math.Sqrt((0.4536846224746695 / (15)) + (0.001843892541676175 / (34))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (15) + (34) - 2, .025) and -0.09815450689611971 = (7.599453846649007 - 8.34537449164666) / 7.599453846649007 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<Byte>.SequenceCompareTo(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 11.45509606159425 > 9.876273188909868.
IsChangePoint: Marked as a change because one of 8/28/2023 1:23:07 PM, 9/19/2023 8:08:41 AM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -20.048347515713427 (T) = (0 -11.405661232735953) / Math.Sqrt((0.15188797444819507 / (20)) + (0.006235101012472099 / (29))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (29) - 2, .025) and -0.18390015052620312 = (9.633972280235396 - 11.405661232735953) / 9.633972280235396 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<Byte>.SequenceCompareToDifferent(Size: 4)

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 4.1878079971438495 > 2.7253481247934648.
IsChangePoint: Marked as a change because one of 8/28/2023 1:23:07 PM, 9/19/2023 8:08:41 AM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -617.0335115177755 (T) = (0 -4.1852323363729385) / Math.Sqrt((6.963358543964796E-05 / (20)) + (9.160422810784563E-05 / (29))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (29) - 2, .025) and -0.6126852155388266 = (2.595194831605484 - 4.1852323363729385) / 2.595194831605484 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<Byte>.SequenceCompareTo(Size: 4)

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 5.9523234176104465 > 4.781717720595053.
IsChangePoint: Marked as a change because one of 8/28/2023 1:23:07 PM, 9/19/2023 8:08:41 AM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -103.45032966207754 (T) = (0 -5.9527616386283615) / Math.Sqrt((0.0037593271679349986 / (20)) + (0.00012687631716283793 / (30))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (30) - 2, .025) and -0.3173959641909093 = (4.518581960499859 - 5.9527616386283615) / 4.518581960499859 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<Byte>.ToArray(Size: 33)

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 11.273446483899338 > 10.370287723881098.
IsChangePoint: Marked as a change because one of 9/19/2023 8:08:41 AM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -10.79192365209388 (T) = (0 -11.088503517492528) / Math.Sqrt((0.12631320324119 / (20)) + (0.032703202494978045 / (29))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (29) - 2, .025) and -0.09166412171757089 = (10.157431481806345 - 11.088503517492528) / 10.157431481806345 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<Byte>.IndexOfAnyTwoValues(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 12.242875348396467 > 8.61792236594875.
IsChangePoint: Marked as a change because one of 8/27/2023 2:42:29 PM, 9/19/2023 8:08:41 AM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -18.669451692607062 (T) = (0 -12.252336970727411) / Math.Sqrt((0.8659802721207546 / (20)) + (0.0068008472040823305 / (29))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (29) - 2, .025) and -0.466114226947199 = (8.357013898050571 - 12.252336970727411) / 8.357013898050571 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<Byte>.Reverse(Size: 33)

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 3.042285303922604 > 2.276775205126158.
IsChangePoint: Marked as a change because one of 8/27/2023 2:42:29 PM, 9/19/2023 8:08:41 AM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -24.8721470575375 (T) = (0 -3.038586352022477) / Math.Sqrt((0.026403720268533097 / (20)) + (0.00013704654609946612 / (29))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (29) - 2, .025) and -0.42438853142018884 = (2.133256681723525 - 3.038586352022477) / 2.133256681723525 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 ubuntu 22.04
Queue TigerUbuntu
Baseline bc97b0aa42d0d173a6c9d0542f78f6825a1efb49
Compare e1ca02f9eccac5531dafa5d506b0846d9bd8ad6b
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsTrue<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
1.12 ms 1.25 ms 1.11 0.15 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsTrue&lt;String&gt;*'

Payloads

Baseline
Compare

System.Collections.ContainsTrue<String>.ImmutableList(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 1.2476172448224851 > 1.215428895954241.
IsChangePoint: Marked as a change because one of 9/18/2023 9:14:49 AM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -5.362374480232122 (T) = (0 -1241906.9865928227) / Math.Sqrt((2339280606.373698 / (15)) + (325382824.4270541 / (34))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (15) + (34) - 2, .025) and -0.05881902626517761 = (1172917.1423878355 - 1241906.9865928227) / 1172917.1423878355 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 ubuntu 22.04
Queue TigerUbuntu
Baseline bc97b0aa42d0d173a6c9d0542f78f6825a1efb49
Compare e1ca02f9eccac5531dafa5d506b0846d9bd8ad6b
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Globalization.Tests.StringEquality

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
11.88 ns 14.09 ns 1.19 0.47 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Globalization.Tests.StringEquality*'

Payloads

Baseline
Compare

System.Globalization.Tests.StringEquality.Compare_Same_Upper(Count: 1024, Options: (en-US, Ordinal))

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 14.094636931788493 > 13.229372659359283.
IsChangePoint: Marked as a change because one of 8/18/2023 2:38:23 PM, 9/18/2023 9:14:49 AM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -5.472300689894596 (T) = (0 -13.951201859859417) / Math.Sqrt((0.6214800733821185 / (15)) + (0.16950023815130144 / (34))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (15) + (34) - 2, .025) and -0.09230894465165185 = (12.772212411305112 - 13.951201859859417) / 12.772212411305112 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 ubuntu 22.04
Queue TigerUbuntu
Baseline bc97b0aa42d0d173a6c9d0542f78f6825a1efb49
Compare e1ca02f9eccac5531dafa5d506b0846d9bd8ad6b
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Json.Tests.Perf_Depth

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio
13.56 μs 15.71 μs 1.16 0.38 False
54.13 ns 60.45 ns 1.12 0.26 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Tests.Perf_Depth*'

Payloads

Baseline
Compare

System.Text.Json.Tests.Perf_Depth.ReadSpanEmptyLoop(Depth: 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 15.707812859015988 > 14.922786780698079.
IsChangePoint: Marked as a change because one of 9/18/2023 9:14:49 AM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -4.926670387648881 (T) = (0 -15430.652813865834) / Math.Sqrt((642664.6188079081 / (15)) + (113577.31711057271 / (34))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (15) + (34) - 2, .025) and -0.07366981255430818 = (14371.879169402766 - 15430.652813865834) / 14371.879169402766 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.Json.Tests.Perf_Depth.ReadSpanEmptyLoop(Depth: 1)

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 60.44774806913206 > 56.87478457676067.
IsChangePoint: Marked as a change because one of 9/17/2023 10:41:18 PM, 9/25/2023 10:28:34 PM falls between 9/17/2023 8:50:51 AM and 9/25/2023 10:28:34 PM.
IsRegressionStdDev: Marked as regression because -4.856909528544266 (T) = (0 -60.257847391615734) / Math.Sqrt((7.421417865942195 / (13)) + (0.6586079732870783 / (36))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (36) - 2, .025) and -0.06594835529509437 = (56.52980005296233 - 60.257847391615734) / 56.52980005296233 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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