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Regression in BenchmarksGame.SpectralNorm_3.RunBench #79178

Closed
performanceautofiler bot opened this issue Aug 18, 2022 · 4 comments
Closed

Regression in BenchmarksGame.SpectralNorm_3.RunBench #79178

performanceautofiler bot opened this issue Aug 18, 2022 · 4 comments
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@kunalspathak
Labels
area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark
Milestone
8.0.0

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@performanceautofiler
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Run Information

Architecture arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.CtorDefaultSize<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentDictionary - Duration of single invocation 398.93 ns 1.56 μs 3.90 0.71 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorDefaultSize&lt;Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.CtorDefaultSize<Int32>.ConcurrentDictionary

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -3.764189811332933 (T) = (0 -1466.1697547435504) / Math.Sqrt((195045.37524450794 / (6)) + (16154.364848186735 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.8729246379270864 = (782.8236785684427 - 1466.1697547435504) / 782.8236785684427 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
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
SingleParallel - Duration of single invocation 10.64 μs 50.98 μs 4.79 0.58 False
SingleParallel - Duration of single invocation 64.18 ns 217.17 ns 3.38 0.71 False
SingleParallel - Duration of single invocation 1.84 μs 8.41 μs 4.57 0.60 False
SingleParallel - Duration of single invocation 11.03 μs 55.69 μs 5.05 0.54 False
SingleParallel - Duration of single invocation 11.57 μs 12.76 μs 1.10 0.54 False

graph
graph
graph
graph
graph
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&lt;Byte&gt;*'

Payloads

Baseline
Compare

Histogram

System.Buffers.Tests.RentReturnArrayPoolTests<Byte>.SingleParallel(RentalSize: 4096, ManipulateArray: True, 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -3.404825682825995 (T) = (0 -50655.35255340683) / Math.Sqrt((301564967.29012877 / (6)) + (2322324.7785957134 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.9114218325834994 = (26501.398953333333 - 50655.35255340683) / 26501.398953333333 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&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: True)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -5.905333015052591 (T) = (0 -219.1578288135524) / Math.Sqrt((1777.8507405102741 / (6)) + (818.7176138614402 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.9279021597673053 = (113.67684179574985 - 219.1578288135524) / 113.67684179574985 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&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: True, Async: False, UseSharedPool: True)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -5.748635253673775 (T) = (0 -7598.546598426023) / Math.Sqrt((2951969.155684131 / (5)) + (986337.9749516164 / (36))) is less than -2.0226909200346674 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (5) + (36) - 2, .025) and -1.466953639152025 = (3080.1335208868777 - 7598.546598426023) / 3080.1335208868777 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&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: True, Async: False, 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 5:14:51 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -4.20978470839608 (T) = (0 -54438.23243373626) / Math.Sqrt((273130745.75530803 / (5)) + (3112536.6934363293 / (37))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (5) + (37) - 2, .025) and -1.3364074579014957 = (23299.973747999997 - 54438.23243373626) / 23299.973747999997 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&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: False, Async: False, 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 5:14:51 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -2.957375517339656 (T) = (0 -14097.843935134706) / Math.Sqrt((23007565.529022705 / (5)) + (1054842.9475649332 / (36))) is less than -2.0226909200346674 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (5) + (36) - 2, .025) and -0.8228939212782949 = (7733.770885169592 - 14097.843935134706) / 7733.770885169592 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.TryAddDefaultSize<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentDictionary - Duration of single invocation 108.02 μs 152.02 μs 1.41 0.70 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.TryAddDefaultSize&lt;Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.TryAddDefaultSize<Int32>.ConcurrentDictionary(Count: 512)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 6/22/2022 11:10:17 PM, 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -7.207636407145145 (T) = (0 -153359.26107124833) / Math.Sqrt((105215729.89492527 / (6)) + (114948250.7533222 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.2722310281836673 = (120543.5629802203 - 153359.26107124833) / 120543.5629802203 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.ContainsKeyFalse<Int32, Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentDictionary - Duration of single invocation 8.25 μs 10.16 μs 1.23 0.72 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.ContainsKeyFalse&lt;Int32, Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.ContainsKeyFalse<Int32, Int32>.ConcurrentDictionary(Size: 512)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -6.768329737364618 (T) = (0 -9733.575794494174) / Math.Sqrt((330922.69957275706 / (6)) + (1148771.7892948198 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.2581417513944518 = (7736.469903892817 - 9733.575794494174) / 7736.469903892817 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.CreateAddAndClear<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentDictionary - Duration of single invocation 117.56 μs 166.58 μs 1.42 0.73 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CreateAddAndClear&lt;Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.CreateAddAndClear<Int32>.ConcurrentDictionary(Size: 512)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 6/22/2022 1:08:18 PM, 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -6.2938946422853395 (T) = (0 -197377.1850791642) / Math.Sqrt((533659365.80713236 / (6)) + (265353228.98127037 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.4554868653860941 = (135609.0458616446 - 197377.1850791642) / 135609.0458616446 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.TryGetValueFalse<Int32, Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentDictionary - Duration of single invocation 6.12 μs 10.72 μs 1.75 0.67 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.TryGetValueFalse&lt;Int32, Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.TryGetValueFalse<Int32, Int32>.ConcurrentDictionary(Size: 512)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -4.0807930312536165 (T) = (0 -8448.165153384609) / Math.Sqrt((546131.0221927919 / (6)) + (705153.0284785373 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.19139679485266783 = (7090.9752232708815 - 8448.165153384609) / 7090.9752232708815 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.Concurrent.IsEmpty<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Dictionary - Duration of single invocation 633.59 ns 2.49 μs 3.93 0.75 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.Concurrent.IsEmpty&lt;String&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.Concurrent.IsEmpty<String>.Dictionary(Size: 0)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -4.956551800551829 (T) = (0 -2596.5709583118833) / Math.Sqrt((520326.0295450867 / (6)) + (83911.90097717417 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -1.3236399162681527 = (1117.458406585676 - 2596.5709583118833) / 1117.458406585676 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in BenchmarksGame.SpectralNorm_3

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
RunBench - Duration of single invocation 17.24 ms 22.87 ms 1.33 0.65 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'BenchmarksGame.SpectralNorm_3*'

Payloads

Baseline
Compare

Histogram

BenchmarksGame.SpectralNorm_3.RunBench

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -4.60418331078665 (T) = (0 -25129659.398106743) / Math.Sqrt((49905291396343.64 / (6)) + (8336890832618.489 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -1.1538101496463542 = (11667536.900702653 - 25129659.398106743) / 11667536.900702653 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
@performanceautofiler performanceautofiler bot added arm64 untriaged New issue has not been triaged by the area owner labels Aug 18, 2022
@DrewScoggins DrewScoggins removed the untriaged New issue has not been triaged by the area owner label Aug 23, 2022
@dakersnar dakersnar reopened this Dec 2, 2022
@dakersnar
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Looks like the BenchmarksGame.SpectralNorm_3.RunBench regression slipped by. It was detected in the 7 vs 6 perf report, details below.

image

BenchmarksGame.SpectralNorm_3.RunBench

Result Ratio Alloc Delta Operating System Bit Processor Name Modality
Slower 0.37 +101 Windows 11 Arm64 Microsoft SQ1 3.0 GHz
Same 1.05 +8 macOS 13.0 Arm64 Apple M1 several?
Slower 0.10 +135 Windows 10 X64 Intel Xeon CPU E5-1650 v4 3.60GHz several?
Faster 1.63 -45 Windows 10 X64 Intel Core i7-5557U CPU 3.10GHz (Broadwell)
Same 1.07 -2 Windows 10 X64 Intel Core i7-8650U CPU 1.90GHz (Kaby Lake R)
Same 1.02 -10 Windows 11 X64 AMD Ryzen Threadripper PRO 3945WX 12-Cores
Slower 0.28 -10 Windows 11 X64 11th Gen Intel Core i9-11900 2.50GHz bimodal
Slower 0.76 +48 ubuntu 18.04 X64 Intel Xeon CPU E5-1650 v4 3.60GHz
Slower 0.72 -12 raspbian 11 Arm ARMv7 Processor rev 3 (v7l)
Same 1.06 -20 macOS Monterey 12.6 X64 Intel Core i7-5557U CPU 3.10GHz (Broadwell) several?

@dakersnar dakersnar transferred this issue from dotnet/perf-autofiling-issues Dec 2, 2022
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I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

@ghost ghost added the untriaged New issue has not been triaged by the area owner label Dec 2, 2022
@dakersnar dakersnar changed the title [Perf] Windows 10.0.25094/arm64 : Regression on 8/11/2022 4:03:37 AM Regression in BenchmarksGame.SpectralNorm_3.RunBench Dec 2, 2022
@dakersnar dakersnar added tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark and removed refs/heads/main labels Dec 2, 2022
@jeffschwMSFT jeffschwMSFT added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Dec 5, 2022
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ghost commented Dec 5, 2022

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

Issue Details

Run Information

Architecture arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.CtorDefaultSize<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentDictionary - Duration of single invocation 398.93 ns 1.56 μs 3.90 0.71 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorDefaultSize&lt;Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.CtorDefaultSize<Int32>.ConcurrentDictionary

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -3.764189811332933 (T) = (0 -1466.1697547435504) / Math.Sqrt((195045.37524450794 / (6)) + (16154.364848186735 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.8729246379270864 = (782.8236785684427 - 1466.1697547435504) / 782.8236785684427 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
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
SingleParallel - Duration of single invocation 10.64 μs 50.98 μs 4.79 0.58 False
SingleParallel - Duration of single invocation 64.18 ns 217.17 ns 3.38 0.71 False
SingleParallel - Duration of single invocation 1.84 μs 8.41 μs 4.57 0.60 False
SingleParallel - Duration of single invocation 11.03 μs 55.69 μs 5.05 0.54 False
SingleParallel - Duration of single invocation 11.57 μs 12.76 μs 1.10 0.54 False

graph
graph
graph
graph
graph
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&lt;Byte&gt;*'

Payloads

Baseline
Compare

Histogram

System.Buffers.Tests.RentReturnArrayPoolTests<Byte>.SingleParallel(RentalSize: 4096, ManipulateArray: True, 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -3.404825682825995 (T) = (0 -50655.35255340683) / Math.Sqrt((301564967.29012877 / (6)) + (2322324.7785957134 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.9114218325834994 = (26501.398953333333 - 50655.35255340683) / 26501.398953333333 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&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: True)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -5.905333015052591 (T) = (0 -219.1578288135524) / Math.Sqrt((1777.8507405102741 / (6)) + (818.7176138614402 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.9279021597673053 = (113.67684179574985 - 219.1578288135524) / 113.67684179574985 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&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: True, Async: False, UseSharedPool: True)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -5.748635253673775 (T) = (0 -7598.546598426023) / Math.Sqrt((2951969.155684131 / (5)) + (986337.9749516164 / (36))) is less than -2.0226909200346674 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (5) + (36) - 2, .025) and -1.466953639152025 = (3080.1335208868777 - 7598.546598426023) / 3080.1335208868777 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&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: True, Async: False, 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 5:14:51 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -4.20978470839608 (T) = (0 -54438.23243373626) / Math.Sqrt((273130745.75530803 / (5)) + (3112536.6934363293 / (37))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (5) + (37) - 2, .025) and -1.3364074579014957 = (23299.973747999997 - 54438.23243373626) / 23299.973747999997 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&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: False, Async: False, 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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 5:14:51 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -2.957375517339656 (T) = (0 -14097.843935134706) / Math.Sqrt((23007565.529022705 / (5)) + (1054842.9475649332 / (36))) is less than -2.0226909200346674 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (5) + (36) - 2, .025) and -0.8228939212782949 = (7733.770885169592 - 14097.843935134706) / 7733.770885169592 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.TryAddDefaultSize<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentDictionary - Duration of single invocation 108.02 μs 152.02 μs 1.41 0.70 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.TryAddDefaultSize&lt;Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.TryAddDefaultSize<Int32>.ConcurrentDictionary(Count: 512)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 6/22/2022 11:10:17 PM, 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -7.207636407145145 (T) = (0 -153359.26107124833) / Math.Sqrt((105215729.89492527 / (6)) + (114948250.7533222 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.2722310281836673 = (120543.5629802203 - 153359.26107124833) / 120543.5629802203 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.ContainsKeyFalse<Int32, Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentDictionary - Duration of single invocation 8.25 μs 10.16 μs 1.23 0.72 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.ContainsKeyFalse&lt;Int32, Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.ContainsKeyFalse<Int32, Int32>.ConcurrentDictionary(Size: 512)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -6.768329737364618 (T) = (0 -9733.575794494174) / Math.Sqrt((330922.69957275706 / (6)) + (1148771.7892948198 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.2581417513944518 = (7736.469903892817 - 9733.575794494174) / 7736.469903892817 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.CreateAddAndClear<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentDictionary - Duration of single invocation 117.56 μs 166.58 μs 1.42 0.73 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CreateAddAndClear&lt;Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.CreateAddAndClear<Int32>.ConcurrentDictionary(Size: 512)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 6/22/2022 1:08:18 PM, 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -6.2938946422853395 (T) = (0 -197377.1850791642) / Math.Sqrt((533659365.80713236 / (6)) + (265353228.98127037 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.4554868653860941 = (135609.0458616446 - 197377.1850791642) / 135609.0458616446 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.TryGetValueFalse<Int32, Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentDictionary - Duration of single invocation 6.12 μs 10.72 μs 1.75 0.67 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.TryGetValueFalse&lt;Int32, Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.TryGetValueFalse<Int32, Int32>.ConcurrentDictionary(Size: 512)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -4.0807930312536165 (T) = (0 -8448.165153384609) / Math.Sqrt((546131.0221927919 / (6)) + (705153.0284785373 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -0.19139679485266783 = (7090.9752232708815 - 8448.165153384609) / 7090.9752232708815 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in System.Collections.Concurrent.IsEmpty<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Dictionary - Duration of single invocation 633.59 ns 2.49 μs 3.93 0.75 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.Concurrent.IsEmpty&lt;String&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.Concurrent.IsEmpty<String>.Dictionary(Size: 0)

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -4.956551800551829 (T) = (0 -2596.5709583118833) / Math.Sqrt((520326.0295450867 / (6)) + (83911.90097717417 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -1.3236399162681527 = (1117.458406585676 - 2596.5709583118833) / 1117.458406585676 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 arm64
OS Windows 10.0.25094
Baseline ee5b738d482b2bf72a5d6aab486e770490ade194
Compare bb97114906869daef02425e7c2f971bad6d97d64
Diff Diff

Regressions in BenchmarksGame.SpectralNorm_3

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
RunBench - Duration of single invocation 17.24 ms 22.87 ms 1.33 0.65 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'BenchmarksGame.SpectralNorm_3*'

Payloads

Baseline
Compare

Histogram

BenchmarksGame.SpectralNorm_3.RunBench

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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 11:28:06 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsRegressionStdDev: Marked as regression because -4.60418331078665 (T) = (0 -25129659.398106743) / Math.Sqrt((49905291396343.64 / (6)) + (8336890832618.489 / (36))) is less than -2.0210753903043583 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (36) - 2, .025) and -1.1538101496463542 = (11667536.900702653 - 25129659.398106743) / 11667536.900702653 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

Author: performanceautofiler[bot]
Assignees: kunalspathak
Labels:

tenet-performance, tenet-performance-benchmarks, area-CodeGen-coreclr, untriaged
Milestone: -

@dakersnar dakersnar mentioned this issue Dec 5, 2022
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@JulieLeeMSFT JulieLeeMSFT removed the untriaged New issue has not been triaged by the area owner label Dec 27, 2022
@JulieLeeMSFT JulieLeeMSFT added this to the 8.0.0 milestone Dec 27, 2022
@kunalspathak
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Caused by #68639 where we started taking into account the correct number of processors. We can clearly see that this only affects high core devices Windows Arm64 like Ampere and not surface. Don't think there is anything actionable here.

@ghost ghost locked as resolved and limited conversation to collaborators Apr 19, 2023
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@kunalspathak kunalspathak

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area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark
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@DrewScoggins @jeffschwMSFT @kunalspathak @dakersnar @JulieLeeMSFT