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Regressions in System.IO.Tests.StreamReaderReadLineTests #78401

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performanceautofiler bot opened this issue Nov 15, 2022 · 6 comments
Closed

Regressions in System.IO.Tests.StreamReaderReadLineTests #78401

performanceautofiler bot opened this issue Nov 15, 2022 · 6 comments
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area-System.IO

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Run Information

Architecture x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Buffers.Text.Tests.Utf8ParserTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
TryParseInt64 - Duration of single invocation 15.74 ns 22.19 ns 1.41 0.03 False
TryParseInt64 - Duration of single invocation 16.40 ns 22.76 ns 1.39 0.03 False

graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Buffers.Text.Tests.Utf8ParserTests*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Buffers.Text.Tests.Utf8ParserTests.TryParseInt64(value: 9223372036854775807)

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.
IsRegressionWindowed: Marked as regression because 22.19283269865067 > 16.63086313259269.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/11/2022 8:42:28 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.275690621249364 (T) = (0 -20.313302515916632) / Math.Sqrt((0.008833013323346104 / (16)) + (8.364027773330086 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.2777451580932452 = (15.897773031853854 - 20.313302515916632) / 15.897773031853854 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Text.Tests.Utf8ParserTests.TryParseInt64(value: -9223372036854775808)

```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.
IsRegressionWindowed: Marked as regression because 22.764201648476273 > 17.18611372837554.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/11/2022 8:42:28 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.683494999969362 (T) = (0 -20.98591058883155) / Math.Sqrt((0.03630723696880299 / (16)) + (8.243052325497068 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.2755608216815791 = (16.452301005267397 - 20.98591058883155) / 16.452301005267397 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Tests.Perf_Char

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Char_ToLowerInvariant - Duration of single invocation 16.72 ns 18.44 ns 1.10 0.03 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Char*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Tests.Perf_Char.Char_ToLowerInvariant(input: "Hello World!")

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.
IsRegressionWindowed: Marked as regression because 18.443254325458796 > 17.554240302805468.
IsChangePoint: Marked as a change because one of 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/11/2022 8:42:28 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -7.407192860548463 (T) = (0 -17.667164066808535) / Math.Sqrt((0.026924164569101915 / (16)) + (0.5379986921396405 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.056414439356238084 = (16.723705591883636 - 17.667164066808535) / 16.723705591883636 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.IndexerSet<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Span - Duration of single invocation 180.68 ns 232.97 ns 1.29 0.15 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IndexerSet&lt;String&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.IndexerSet<String>.Span(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.
IsRegressionWindowed: Marked as regression because 232.97036899333656 > 189.69328612427577.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/2/2022 4:08:45 AM, 10/6/2022 2:13:23 PM, 10/19/2022 7:27:15 PM, 11/1/2022 2:33:16 AM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.562505528165778 (T) = (0 -220.26905320647865) / Math.Sqrt((0.07188265773928504 / (16)) + (632.5508165942249 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.21880445013484376 = (180.72550783852893 - 220.26905320647865) / 180.72550783852893 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.IO.Tests.StreamReaderReadLineTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ReadLineAsync - Duration of single invocation 334.14 μs 399.38 μs 1.20 0.14 False
ReadLineAsync - Duration of single invocation 526.76 μs 628.30 μs 1.19 0.24 False

graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Tests.StreamReaderReadLineTests*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [ 1, 1])

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.
IsRegressionWindowed: Marked as regression because 399.37636711045366 > 350.6809496355553.
IsChangePoint: Marked as a change because one of 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -14.782936413555788 (T) = (0 -380185.54868294) / Math.Sqrt((55698918.822174944 / (16)) + (147909593.661088 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.11898847745903653 = (339758.23374540306 - 380185.54868294) / 339758.23374540306 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [   0,    0])

```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.
IsRegressionWindowed: Marked as regression because 628.2965556666667 > 559.288579140625.
IsChangePoint: Marked as a change because one of 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -16.44234515368953 (T) = (0 -642223.0471008036) / Math.Sqrt((261482968.2116026 / (16)) + (733203162.991802 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.1819663655528818 = (543351.3726089782 - 642223.0471008036) / 543351.3726089782 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.MathBenchmarks.Double

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Min - Duration of single invocation 5.45 μs 6.48 μs 1.19 0.03 False
Max - Duration of single invocation 5.45 μs 5.97 μs 1.10 0.01 False

graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.MathBenchmarks.Double*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.MathBenchmarks.Double.Min

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.
IsRegressionWindowed: Marked as regression because 6.482171705064343 > 5.723887925295047.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 9/29/2022 7:42:19 AM, 10/11/2022 8:42:28 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -12.803226097013333 (T) = (0 -6303.204940285497) / Math.Sqrt((3.84953204434635 / (16)) + (168650.9891305228 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.15650154266359861 = (5450.234788073226 - 6303.204940285497) / 5450.234788073226 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.MathBenchmarks.Double.Max

```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.
IsRegressionWindowed: Marked as regression because 5.972719048528849 > 5.720471996915976.
IsChangePoint: Marked as a change because one of 10/25/2022 2:34:53 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -11.69958332677974 (T) = (0 -5873.789380132023) / Math.Sqrt((9922.69638986074 / (16)) + (42591.86102422702 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.09064314245089053 = (5385.6198709804 - 5873.789380132023) / 5385.6198709804 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.CtorFromCollection<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ImmutableDictionary - Duration of single invocation 138.86 μs 150.23 μs 1.08 0.13 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorFromCollection&lt;String&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.CtorFromCollection<String>.ImmutableDictionary(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.
IsRegressionWindowed: Marked as regression because 150.22714089285716 > 146.92920510999852.
IsChangePoint: Marked as a change because one of 9/23/2022 1:16:35 AM, 10/17/2022 8:10:07 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -8.918226090802639 (T) = (0 -148104.51312537215) / Math.Sqrt((2858308.008602207 / (16)) + (19906848.030958474 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.053152963662812615 = (140629.63143575285 - 148104.51312537215) / 140629.63143575285 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Linq.Tests.Perf_Enumerable

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
WhereSingle_LastElementMatches - Duration of single invocation 190.14 ns 211.42 ns 1.11 0.05 False
WhereFirst_LastElementMatches - Duration of single invocation 190.87 ns 211.78 ns 1.11 0.04 False

graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Linq.Tests.Perf_Enumerable*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Linq.Tests.Perf_Enumerable.WhereSingle_LastElementMatches(input: Array)

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.
IsRegressionWindowed: Marked as regression because 211.41983451963767 > 199.6457327533048.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 10/6/2022 2:13:23 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.554168513126532 (T) = (0 -205.32897386055) / Math.Sqrt((0.21048794115904007 / (16)) + (91.40288433743625 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.07913150774878853 = (190.27242962156993 - 205.32897386055) / 190.27242962156993 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Linq.Tests.Perf_Enumerable.WhereFirst_LastElementMatches(input: Array)

```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.
IsRegressionWindowed: Marked as regression because 211.77893976575027 > 200.48165072676463.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 10/6/2022 2:13:23 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -8.521672071752441 (T) = (0 -206.2262572746283) / Math.Sqrt((4.72527723640078 / (16)) + (101.3877538279305 / (36))) is less than -2.0085591120996775 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (36) - 2, .025) and -0.07862236251955844 = (191.19412357899157 - 206.2262572746283) / 191.19412357899157 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.IterateFor<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ImmutableList - Duration of single invocation 10.94 μs 11.89 μs 1.09 0.03 False
ImmutableSortedSet - Duration of single invocation 10.93 μs 11.90 μs 1.09 0.02 False

graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IterateFor&lt;Int32&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.IterateFor<Int32>.ImmutableList(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.
IsRegressionWindowed: Marked as regression because 11.890829597317571 > 11.486369528882046.
IsChangePoint: Marked as a change because one of 9/7/2022 1:05:52 PM, 9/23/2022 1:16:35 AM, 9/24/2022 1:05:07 PM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 11/3/2022 3:03:31 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -8.84961754672181 (T) = (0 -11841.863696315608) / Math.Sqrt((87101.69213736545 / (16)) + (81012.02349001147 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.06985328302425661 = (11068.680055681167 - 11841.863696315608) / 11068.680055681167 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.IterateFor&lt;Int32&gt;.ImmutableSortedSet(Size: 512)

```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.
IsRegressionWindowed: Marked as regression because 11.899732989282093 > 11.490290404405876.
IsChangePoint: Marked as a change because one of 9/23/2022 1:16:35 AM, 9/29/2022 7:42:19 AM, 10/2/2022 4:08:26 PM, 11/3/2022 3:03:31 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -6.804122098263 (T) = (0 -11859.249976383551) / Math.Sqrt((190493.31053203033 / (16)) + (18735.330497867715 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.06828515744266861 = (11101.202608461776 - 11859.249976383551) / 11101.202608461776 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in Benchstone.BenchI.IniArray

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Test - Duration of single invocation 45.89 ms 50.58 ms 1.10 0.03 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'Benchstone.BenchI.IniArray*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

Benchstone.BenchI.IniArray.Test

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.
IsRegressionWindowed: Marked as regression because 50.5768609625 > 48.045140797500004.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/11/2022 8:42:28 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -7.6601565865674655 (T) = (0 -49174234.29111843) / Math.Sqrt((580328568350.4752 / (16)) + (7794842012276.436 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.08287946820905547 = (45410625.77578125 - 49174234.29111843) / 45410625.77578125 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Globalization.Tests.StringSearch

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
LastIndexOf_Word_NotFound - Duration of single invocation 540.34 ns 591.84 ns 1.10 0.05 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Globalization.Tests.StringSearch*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, 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.
IsRegressionWindowed: Marked as regression because 591.8351749027564 > 567.4671108117338.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.546341918368938 (T) = (0 -575.9324839835615) / Math.Sqrt((0.2801493266789964 / (16)) + (519.7217256342007 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.06534736839842478 = (540.6053472018067 - 575.9324839835615) / 540.6053472018067 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.AddGivenSize<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Stack - Duration of single invocation 1.56 μs 1.77 μs 1.13 0.17 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.AddGivenSize&lt;String&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.AddGivenSize<String>.Stack(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.
IsRegressionWindowed: Marked as regression because 1.7698955011042725 > 1.6382135665752704.
IsChangePoint: Marked as a change because one of 9/3/2022 12:10:33 AM, 9/13/2022 12:23:36 PM, 9/27/2022 11:22:50 AM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -12.956980256617758 (T) = (0 -1714.828413933533) / Math.Sqrt((36.82722375868465 / (16)) + (5363.622930104425 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.09950127483860234 = (1559.6420424207836 - 1714.828413933533) / 1559.6420424207836 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.
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
Copy link
Author

Run Information

Architecture x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.IterateForEach<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
SortedSet - Duration of single invocation 6.61 μs 7.18 μs 1.09 0.09 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IterateForEach&lt;String&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.IterateForEach<String>.SortedSet(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.
IsRegressionWindowed: Marked as regression because 7.184274150986691 > 6.920603174242828.
IsChangePoint: Marked as a change because one of 9/2/2022 11:09:40 AM, 10/25/2022 2:34:53 PM, 11/3/2022 3:03:31 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -6.739357559427122 (T) = (0 -6979.9451156871) / Math.Sqrt((17730.552779106198 / (16)) + (70760.15038744594 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.05554447986677536 = (6612.648968206501 - 6979.9451156871) / 6612.648968206501 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.IterateFor<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ReadOnlySpan - Duration of single invocation 175.16 ns 229.47 ns 1.31 0.04 False
ImmutableSortedSet - Duration of single invocation 11.14 μs 12.17 μs 1.09 0.03 False
Span - Duration of single invocation 180.44 ns 233.84 ns 1.30 0.04 False

graph
graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IterateFor&lt;String&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.IterateFor<String>.ReadOnlySpan(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.
IsRegressionWindowed: Marked as regression because 229.4654410567115 > 183.9884262806622.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.303476955492874 (T) = (0 -213.43381582704762) / Math.Sqrt((0.031082248341177197 / (16)) + (621.3913163928441 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.21749915266063255 = (175.30510420530902 - 213.43381582704762) / 175.30510420530902 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.IterateFor&lt;String&gt;.ImmutableSortedSet(Size: 512)

```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.
IsRegressionWindowed: Marked as regression because 12.171401553177693 > 11.680934432494226.
IsChangePoint: Marked as a change because one of 9/23/2022 1:16:35 AM, 9/24/2022 1:05:07 PM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/19/2022 7:27:15 PM, 10/25/2022 2:34:53 PM, 11/3/2022 3:03:31 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -10.831517806847272 (T) = (0 -12067.258977926687) / Math.Sqrt((90979.64095036109 / (16)) + (8602.429619172233 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.07417725210449759 = (11233.955061219976 - 12067.258977926687) / 11233.955061219976 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.IterateFor&lt;String&gt;.Span(Size: 512)

```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.
IsRegressionWindowed: Marked as regression because 233.84432644970985 > 189.40575414704776.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.233422171164127 (T) = (0 -218.0390264546188) / Math.Sqrt((0.026863337259448724 / (16)) + (614.3965404211771 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.20856645978990337 = (180.41128370592264 - 218.0390264546188) / 180.41128370592264 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.ContainsTrue<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
HashSet - Duration of single invocation 3.04 μs 3.91 μs 1.29 0.10 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.ContainsTrue&lt;Int32&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.ContainsTrue<Int32>.HashSet(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.
IsRegressionWindowed: Marked as regression because 3.9092691090159843 > 2.8072623057311734.
IsChangePoint: Marked as a change because one of 9/23/2022 1:16:35 AM, 10/6/2022 2:13:23 PM, 10/10/2022 3:36:43 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -11.884883448098034 (T) = (0 -3697.68925847378) / Math.Sqrt((8662.621842686027 / (16)) + (243513.52327688583 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.37223855104364056 = (2694.640269114684 - 3697.68925847378) / 2694.640269114684 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Tests.Perf_Int64

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
TryParse - Duration of single invocation 26.61 ns 29.01 ns 1.09 0.09 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Int64*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Tests.Perf_Int64.TryParse(value: "9223372036854775807")

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.
IsRegressionWindowed: Marked as regression because 29.005201295282188 > 27.387655390408764.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/26/2022 8:26:31 AM, 9/29/2022 7:42:19 AM, 10/6/2022 2:13:23 PM, 10/11/2022 8:42:28 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -10.108397208305318 (T) = (0 -28.39325606138745) / Math.Sqrt((0.12793810834223304 / (16)) + (1.5547042859162021 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.08546303611187757 = (26.15773648367791 - 28.39325606138745) / 26.15773648367791 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.
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 CoreClr untriaged New issue has not been triaged by the area owner labels Nov 15, 2022
This was referenced Nov 15, 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.

@dakersnar dakersnar changed the title [Perf] Linux/x64: 22 Regressions on 11/7/2022 8:57:30 PM Regressions in System.IO.Tests.StreamReaderReadLineTests Nov 15, 2022
@dakersnar dakersnar transferred this issue from dotnet/perf-autofiling-issues Nov 15, 2022
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ghost commented Nov 15, 2022

Tagging subscribers to this area: @dotnet/area-system-io
See info in area-owners.md if you want to be subscribed.

Issue Details

Run Information

Architecture x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Buffers.Text.Tests.Utf8ParserTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
TryParseInt64 - Duration of single invocation 15.74 ns 22.19 ns 1.41 0.03 False
TryParseInt64 - Duration of single invocation 16.40 ns 22.76 ns 1.39 0.03 False

graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Buffers.Text.Tests.Utf8ParserTests*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Buffers.Text.Tests.Utf8ParserTests.TryParseInt64(value: 9223372036854775807)

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.
IsRegressionWindowed: Marked as regression because 22.19283269865067 > 16.63086313259269.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/11/2022 8:42:28 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.275690621249364 (T) = (0 -20.313302515916632) / Math.Sqrt((0.008833013323346104 / (16)) + (8.364027773330086 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.2777451580932452 = (15.897773031853854 - 20.313302515916632) / 15.897773031853854 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Text.Tests.Utf8ParserTests.TryParseInt64(value: -9223372036854775808)

```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.
IsRegressionWindowed: Marked as regression because 22.764201648476273 > 17.18611372837554.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/11/2022 8:42:28 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.683494999969362 (T) = (0 -20.98591058883155) / Math.Sqrt((0.03630723696880299 / (16)) + (8.243052325497068 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.2755608216815791 = (16.452301005267397 - 20.98591058883155) / 16.452301005267397 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Tests.Perf_Char

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Char_ToLowerInvariant - Duration of single invocation 16.72 ns 18.44 ns 1.10 0.03 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Char*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Tests.Perf_Char.Char_ToLowerInvariant(input: "Hello World!")

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.
IsRegressionWindowed: Marked as regression because 18.443254325458796 > 17.554240302805468.
IsChangePoint: Marked as a change because one of 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/11/2022 8:42:28 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -7.407192860548463 (T) = (0 -17.667164066808535) / Math.Sqrt((0.026924164569101915 / (16)) + (0.5379986921396405 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.056414439356238084 = (16.723705591883636 - 17.667164066808535) / 16.723705591883636 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.IndexerSet<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Span - Duration of single invocation 180.68 ns 232.97 ns 1.29 0.15 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IndexerSet&lt;String&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.IndexerSet<String>.Span(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.
IsRegressionWindowed: Marked as regression because 232.97036899333656 > 189.69328612427577.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/2/2022 4:08:45 AM, 10/6/2022 2:13:23 PM, 10/19/2022 7:27:15 PM, 11/1/2022 2:33:16 AM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.562505528165778 (T) = (0 -220.26905320647865) / Math.Sqrt((0.07188265773928504 / (16)) + (632.5508165942249 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.21880445013484376 = (180.72550783852893 - 220.26905320647865) / 180.72550783852893 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.IO.Tests.StreamReaderReadLineTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ReadLineAsync - Duration of single invocation 334.14 μs 399.38 μs 1.20 0.14 False
ReadLineAsync - Duration of single invocation 526.76 μs 628.30 μs 1.19 0.24 False

graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Tests.StreamReaderReadLineTests*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [ 1, 1])

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.
IsRegressionWindowed: Marked as regression because 399.37636711045366 > 350.6809496355553.
IsChangePoint: Marked as a change because one of 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -14.782936413555788 (T) = (0 -380185.54868294) / Math.Sqrt((55698918.822174944 / (16)) + (147909593.661088 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.11898847745903653 = (339758.23374540306 - 380185.54868294) / 339758.23374540306 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [   0,    0])

```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.
IsRegressionWindowed: Marked as regression because 628.2965556666667 > 559.288579140625.
IsChangePoint: Marked as a change because one of 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -16.44234515368953 (T) = (0 -642223.0471008036) / Math.Sqrt((261482968.2116026 / (16)) + (733203162.991802 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.1819663655528818 = (543351.3726089782 - 642223.0471008036) / 543351.3726089782 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.MathBenchmarks.Double

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Min - Duration of single invocation 5.45 μs 6.48 μs 1.19 0.03 False
Max - Duration of single invocation 5.45 μs 5.97 μs 1.10 0.01 False

graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.MathBenchmarks.Double*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.MathBenchmarks.Double.Min

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.
IsRegressionWindowed: Marked as regression because 6.482171705064343 > 5.723887925295047.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 9/29/2022 7:42:19 AM, 10/11/2022 8:42:28 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -12.803226097013333 (T) = (0 -6303.204940285497) / Math.Sqrt((3.84953204434635 / (16)) + (168650.9891305228 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.15650154266359861 = (5450.234788073226 - 6303.204940285497) / 5450.234788073226 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.MathBenchmarks.Double.Max

```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.
IsRegressionWindowed: Marked as regression because 5.972719048528849 > 5.720471996915976.
IsChangePoint: Marked as a change because one of 10/25/2022 2:34:53 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -11.69958332677974 (T) = (0 -5873.789380132023) / Math.Sqrt((9922.69638986074 / (16)) + (42591.86102422702 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.09064314245089053 = (5385.6198709804 - 5873.789380132023) / 5385.6198709804 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.CtorFromCollection<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ImmutableDictionary - Duration of single invocation 138.86 μs 150.23 μs 1.08 0.13 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorFromCollection&lt;String&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.CtorFromCollection<String>.ImmutableDictionary(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.
IsRegressionWindowed: Marked as regression because 150.22714089285716 > 146.92920510999852.
IsChangePoint: Marked as a change because one of 9/23/2022 1:16:35 AM, 10/17/2022 8:10:07 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -8.918226090802639 (T) = (0 -148104.51312537215) / Math.Sqrt((2858308.008602207 / (16)) + (19906848.030958474 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.053152963662812615 = (140629.63143575285 - 148104.51312537215) / 140629.63143575285 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Linq.Tests.Perf_Enumerable

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
WhereSingle_LastElementMatches - Duration of single invocation 190.14 ns 211.42 ns 1.11 0.05 False
WhereFirst_LastElementMatches - Duration of single invocation 190.87 ns 211.78 ns 1.11 0.04 False

graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Linq.Tests.Perf_Enumerable*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Linq.Tests.Perf_Enumerable.WhereSingle_LastElementMatches(input: Array)

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.
IsRegressionWindowed: Marked as regression because 211.41983451963767 > 199.6457327533048.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 10/6/2022 2:13:23 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.554168513126532 (T) = (0 -205.32897386055) / Math.Sqrt((0.21048794115904007 / (16)) + (91.40288433743625 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.07913150774878853 = (190.27242962156993 - 205.32897386055) / 190.27242962156993 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Linq.Tests.Perf_Enumerable.WhereFirst_LastElementMatches(input: Array)

```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.
IsRegressionWindowed: Marked as regression because 211.77893976575027 > 200.48165072676463.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 10/6/2022 2:13:23 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -8.521672071752441 (T) = (0 -206.2262572746283) / Math.Sqrt((4.72527723640078 / (16)) + (101.3877538279305 / (36))) is less than -2.0085591120996775 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (36) - 2, .025) and -0.07862236251955844 = (191.19412357899157 - 206.2262572746283) / 191.19412357899157 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.IterateFor<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ImmutableList - Duration of single invocation 10.94 μs 11.89 μs 1.09 0.03 False
ImmutableSortedSet - Duration of single invocation 10.93 μs 11.90 μs 1.09 0.02 False

graph
graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IterateFor&lt;Int32&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.IterateFor<Int32>.ImmutableList(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.
IsRegressionWindowed: Marked as regression because 11.890829597317571 > 11.486369528882046.
IsChangePoint: Marked as a change because one of 9/7/2022 1:05:52 PM, 9/23/2022 1:16:35 AM, 9/24/2022 1:05:07 PM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 11/3/2022 3:03:31 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -8.84961754672181 (T) = (0 -11841.863696315608) / Math.Sqrt((87101.69213736545 / (16)) + (81012.02349001147 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.06985328302425661 = (11068.680055681167 - 11841.863696315608) / 11068.680055681167 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.IterateFor&lt;Int32&gt;.ImmutableSortedSet(Size: 512)

```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.
IsRegressionWindowed: Marked as regression because 11.899732989282093 > 11.490290404405876.
IsChangePoint: Marked as a change because one of 9/23/2022 1:16:35 AM, 9/29/2022 7:42:19 AM, 10/2/2022 4:08:26 PM, 11/3/2022 3:03:31 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -6.804122098263 (T) = (0 -11859.249976383551) / Math.Sqrt((190493.31053203033 / (16)) + (18735.330497867715 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.06828515744266861 = (11101.202608461776 - 11859.249976383551) / 11101.202608461776 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in Benchstone.BenchI.IniArray

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Test - Duration of single invocation 45.89 ms 50.58 ms 1.10 0.03 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'Benchstone.BenchI.IniArray*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

Benchstone.BenchI.IniArray.Test

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.
IsRegressionWindowed: Marked as regression because 50.5768609625 > 48.045140797500004.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/11/2022 8:42:28 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -7.6601565865674655 (T) = (0 -49174234.29111843) / Math.Sqrt((580328568350.4752 / (16)) + (7794842012276.436 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.08287946820905547 = (45410625.77578125 - 49174234.29111843) / 45410625.77578125 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Globalization.Tests.StringSearch

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
LastIndexOf_Word_NotFound - Duration of single invocation 540.34 ns 591.84 ns 1.10 0.05 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Globalization.Tests.StringSearch*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, 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.
IsRegressionWindowed: Marked as regression because 591.8351749027564 > 567.4671108117338.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.546341918368938 (T) = (0 -575.9324839835615) / Math.Sqrt((0.2801493266789964 / (16)) + (519.7217256342007 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.06534736839842478 = (540.6053472018067 - 575.9324839835615) / 540.6053472018067 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.
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 x64
OS ubuntu 18.04
Baseline bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare 2aebbf75167b3aa21cae23e6fd702688dd724663
Diff Diff

Regressions in System.Collections.AddGivenSize<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Stack - Duration of single invocation 1.56 μs 1.77 μs 1.13 0.17 False

graph
Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.AddGivenSize&lt;String&gt;*'

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.AddGivenSize<String>.Stack(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.
IsRegressionWindowed: Marked as regression because 1.7698955011042725 > 1.6382135665752704.
IsChangePoint: Marked as a change because one of 9/3/2022 12:10:33 AM, 9/13/2022 12:23:36 PM, 9/27/2022 11:22:50 AM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -12.956980256617758 (T) = (0 -1714.828413933533) / Math.Sqrt((36.82722375868465 / (16)) + (5363.622930104425 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.09950127483860234 = (1559.6420424207836 - 1714.828413933533) / 1559.6420424207836 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.
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: -
Labels:

area-System.IO, untriaged, refs/heads/main, ubuntu 18.04, RunKind=micro, Regression, CoreClr, x64
Milestone: -

@dakersnar
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Most of these are noise, but the StreamReader regressions look to be real and potentially caused by #69888

@stephentoub
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The StreamReader ones are expected. They're the overhead of calling IndexOf on a really short string, in this case an empty string or a string with a single character in it.

@dakersnar
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More regressions here: dotnet/perf-autofiling-issues#9724

@stephentoub sounds good, I think we can probably close this issue then.

@ghost ghost removed the untriaged New issue has not been triaged by the area owner label Nov 15, 2022
@stephentoub stephentoub mentioned this issue Nov 16, 2022
Open
@ghost ghost locked as resolved and limited conversation to collaborators Dec 15, 2022
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@stephentoub @dakersnar