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[Perf] Linux/arm64: 13 Regressions on 4/18/2023 2:18:01 AM #16812

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performanceautofiler bot opened this issue Apr 20, 2023 · 1 comment
Closed

[Perf] Linux/arm64: 13 Regressions on 4/18/2023 2:18:01 AM #16812

performanceautofiler bot opened this issue Apr 20, 2023 · 1 comment
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@EgorBo
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ampere arch-arm64 branch-refs/heads/main kind-micro os-linux perf-regression runtime-coreclr untriaged

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performanceautofiler bot commented Apr 20, 2023 •
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Run Information

Name Value
Architecture arm64
OS ubuntu 20.04
Queue AmpereUbuntu
Baseline e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Compare 90d0d5ce4e4fdf17209d6a4e4a96d62865e2b88f
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Int16

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
TryParse - Duration of single invocation 14.87 ns 16.73 ns 1.13 0.04 False
Parse - Duration of single invocation 15.40 ns 18.24 ns 1.18 0.02 False
Parse - Duration of single invocation 14.94 ns 18.19 ns 1.22 0.06 False
TryParse - Duration of single invocation 15.66 ns 17.66 ns 1.13 0.06 False

graph
graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Int16*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Int16.TryParse(value: "32767")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 16.731928413952513 > 15.563644166602243.
IsChangePoint: Marked as a change because one of 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -17.890011364928526 (T) = (0 -16.795926067722178) / Math.Sqrt((0.1813934945150964 / (16)) + (0.005828552393293465 / (8))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (8) - 2, .025) and -0.13250158259676195 = (14.83081906977125 - 16.795926067722178) / 14.83081906977125 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.Tests.Perf_Int16.Parse(value: "-32768")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 18.242024864325355 > 16.66197130792678.
IsChangePoint: Marked as a change because one of 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -17.675464159410268 (T) = (0 -18.06465840028595) / Math.Sqrt((0.07199192199906013 / (16)) + (0.09695532225035111 / (8))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (8) - 2, .025) and -0.14434407899984153 = (15.786037374418443 - 18.06465840028595) / 15.786037374418443 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.Tests.Perf_Int16.Parse(value: "32767")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 18.192559548933854 > 15.654134915505871.
IsChangePoint: Marked as a change because one of 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -12.48419573997511 (T) = (0 -17.120414932259376) / Math.Sqrt((0.05728439122820429 / (16)) + (0.24693246623558376 / (8))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (8) - 2, .025) and -0.1565217671558617 = (14.803365936087996 - 17.120414932259376) / 14.803365936087996 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.Tests.Perf_Int16.TryParse(value: "-32768")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 17.664996651202383 > 16.41270947806386.
IsChangePoint: Marked as a change because one of 1/13/2023 9:23:19 AM, 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -15.377605810584942 (T) = (0 -17.951481106309082) / Math.Sqrt((0.2226622573738754 / (15)) + (0.05673569977978866 / (8))) is less than -2.079613844716807 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (15) + (8) - 2, .025) and -0.14530839994478748 = (15.673927744854119 - 17.951481106309082) / 15.673927744854119 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

Name Value
Architecture arm64
OS ubuntu 20.04
Queue AmpereUbuntu
Baseline e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Compare 90d0d5ce4e4fdf17209d6a4e4a96d62865e2b88f
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Decimal

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
TryParse - Duration of single invocation 88.45 ns 97.40 ns 1.10 0.01 False
Parse - Duration of single invocation 92.20 ns 98.84 ns 1.07 0.02 False

graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Decimal*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Decimal.TryParse(value: "123456.789")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 97.39923538903132 > 92.67675228233162.
IsChangePoint: Marked as a change because one of 1/11/2023 5:39:19 AM, 3/17/2023 1:30:52 PM, 4/10/2023 1:33:42 PM, 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -10.294431225240384 (T) = (0 -95.85275533891152) / Math.Sqrt((4.385801327136654 / (16)) + (0.879757863780218 / (8))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (8) - 2, .025) and -0.07130553798521784 = (89.47284592515018 - 95.85275533891152) / 89.47284592515018 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.Tests.Perf_Decimal.Parse(value: "123456.789")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 98.83889457245131 > 96.87277804395997.
IsChangePoint: Marked as a change because one of 1/12/2023 11:13:59 PM, 3/17/2023 1:30:52 PM, 4/10/2023 1:33:42 PM, 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -11.43660861190031 (T) = (0 -98.97650316021175) / Math.Sqrt((3.423760805517701 / (16)) + (0.4151711888635079 / (8))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (8) - 2, .025) and -0.06335601657673541 = (93.07936534637481 - 98.97650316021175) / 93.07936534637481 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

Name Value
Architecture arm64
OS ubuntu 20.04
Queue AmpereUbuntu
Baseline e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Compare 90d0d5ce4e4fdf17209d6a4e4a96d62865e2b88f
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_SByte

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Parse - Duration of single invocation 11.80 ns 13.51 ns 1.15 0.07 False
TryParse - Duration of single invocation 11.89 ns 13.44 ns 1.13 0.07 False
Parse - Duration of single invocation 13.00 ns 14.32 ns 1.10 0.07 False
TryParse - Duration of single invocation 13.14 ns 14.29 ns 1.09 0.05 False

graph
graph
graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_SByte*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_SByte.Parse(value: "127")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 13.51090004079765 > 12.902636553941361.
IsChangePoint: Marked as a change because one of 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -7.902143217857007 (T) = (0 -13.394788850977145) / Math.Sqrt((0.20656992101817745 / (16)) + (0.04298216893518699 / (8))) is less than -2.073873067894501 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (8) - 2, .025) and -0.08668437510836385 = (12.326291937013837 - 13.394788850977145) / 12.326291937013837 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.Tests.Perf_SByte.TryParse(value: "127")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 13.436749381706962 > 12.887679083123713.
IsChangePoint: Marked as a change because one of 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -11.146009803975396 (T) = (0 -13.42542002922076) / Math.Sqrt((0.12075681155976344 / (16)) + (0.025173391702800127 / (7))) is less than -2.079613844716807 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (7) - 2, .025) and -0.09605856598756857 = (12.248816300362758 - 13.42542002922076) / 12.248816300362758 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.Tests.Perf_SByte.Parse(value: "-128")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 14.318791454508183 > 13.67610449947543.
IsChangePoint: Marked as a change because one of 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -11.56355259623243 (T) = (0 -14.297868593493751) / Math.Sqrt((0.132579877369572 / (16)) + (0.03192161136745607 / (7))) is less than -2.079613844716807 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (7) - 2, .025) and -0.10091755551668193 = (12.987229172472851 - 14.297868593493751) / 12.987229172472851 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.Tests.Perf_SByte.TryParse(value: "-128")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 14.28779300328869 > 13.656968519985014.
IsChangePoint: Marked as a change because one of 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -18.838742136379715 (T) = (0 -14.243460538567708) / Math.Sqrt((0.03098872942571348 / (16)) + (0.018958380068880277 / (7))) is less than -2.079613844716807 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (7) - 2, .025) and -0.0990747069792513 = (12.959501704588495 - 14.243460538567708) / 12.959501704588495 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

Name Value
Architecture arm64
OS ubuntu 20.04
Queue AmpereUbuntu
Baseline e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Compare 90d0d5ce4e4fdf17209d6a4e4a96d62865e2b88f
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

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

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Dictionary - Duration of single invocation 5.32 μs 5.92 μs 1.11 0.06 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsKeyTrue&lt;Int32, Int32&gt;*'

Payloads

Baseline
Compare

Histogram

System.Collections.ContainsKeyTrue<Int32, Int32>.Dictionary(Size: 512)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 5.922185587353241 > 5.579352888178204.
IsChangePoint: Marked as a change because one of 3/25/2023 12:18:49 AM, 4/4/2023 10:11:10 PM, 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -8.684167857668664 (T) = (0 -5888.756994093582) / Math.Sqrt((61809.683803438646 / (16)) + (3734.654210437815 / (7))) is less than -2.079613844716807 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (7) - 2, .025) and -0.10838108838157116 = (5312.9352853648825 - 5888.756994093582) / 5312.9352853648825 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

Name Value
Architecture arm64
OS ubuntu 20.04
Queue AmpereUbuntu
Baseline e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Compare 90d0d5ce4e4fdf17209d6a4e4a96d62865e2b88f
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Json.Serialization.Tests.WriteJson<SimpleStructWithProperties>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
SerializeToWriter - Duration of single invocation 205.85 ns 221.49 ns 1.08 0.09 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Serialization.Tests.WriteJson&lt;SimpleStructWithProperties&gt;*'

Payloads

Baseline
Compare

Histogram

System.Text.Json.Serialization.Tests.WriteJson<SimpleStructWithProperties>.SerializeToWriter(Mode: Reflection)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 221.4885213779521 > 218.8253085019374.
IsChangePoint: Marked as a change because one of 2/13/2023 5:42:59 PM, 3/13/2023 2:14:21 PM, 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -5.978422467392467 (T) = (0 -228.83605719096832) / Math.Sqrt((7.031072239395443 / (16)) + (61.891528557863104 / (6))) is less than -2.0859634472534285 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (6) - 2, .025) and -0.09370468440430045 = (209.23020670393 - 228.83605719096832) / 209.23020670393 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

Name Value
Architecture arm64
OS ubuntu 20.04
Queue AmpereUbuntu
Baseline e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Compare 90d0d5ce4e4fdf17209d6a4e4a96d62865e2b88f
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

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_IsLower - Duration of single invocation 47.46 ns 52.77 ns 1.11 0.07 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Char*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Char.Char_IsLower(input: "Good afternoon, Constable!")

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 52.7736742199877 > 50.39753092624333.
IsChangePoint: Marked as a change because one of 1/5/2023 10:03:03 PM, 1/13/2023 3:30:06 PM, 3/20/2023 8:31:51 AM, 3/21/2023 2:53:21 PM, 4/17/2023 8:43:19 PM, 4/20/2023 3:04:43 PM falls between 4/11/2023 11:54:05 PM and 4/20/2023 3:04:43 PM.
IsRegressionStdDev: Marked as regression because -6.907750073969274 (T) = (0 -52.09469091018499) / Math.Sqrt((0.40530246663123304 / (16)) + (2.4763207979608084 / (7))) is less than -2.079613844716807 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (7) - 2, .025) and -0.08890031678200655 = (47.841560983413814 - 52.09469091018499) / 47.841560983413814 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
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