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[Perf] Windows/arm64: 15 Regressions on 4/17/2023 5:51:51 AM #16801

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

[Perf] Windows/arm64: 15 Regressions on 4/17/2023 5:51:51 AM #16801

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-windows 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 Windows 10.0.25094
Queue AmpereWindows
Baseline 0b081118dedcbc01d445f3f56222fde9d86f3f44
Compare e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Buffers.Text.Tests.Utf8FormatterTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
FormatterInt32 - Duration of single invocation 6.39 ns 17.06 ns 2.67 0.86 False
FormatterDecimal - Duration of single invocation 60.64 ns 105.74 ns 1.74 0.69 False
FormatterUInt64 - Duration of single invocation 6.11 ns 16.64 ns 2.72 0.92 False
FormatterUInt32 - Duration of single invocation 5.14 ns 9.33 ns 1.81 0.94 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Text.Tests.Utf8FormatterTests*'

Payloads

Baseline
Compare

Histogram

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterInt32(value: 4)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 17.060649846641216 > 6.7041031060991045.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -10.95989510224573 (T) = (0 -13.093104885112101) / Math.Sqrt((1.4027033663686255 / (16)) + (3.6594945138614636 / (10))) is less than -2.0638985616205927 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (10) - 2, .025) and -1.2924173133797534 = (5.711484034208716 - 13.093104885112101) / 5.711484034208716 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterDecimal(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 105.73698079453857 > 66.47446504349914.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -16.063624929982367 (T) = (0 -102.9303577185385) / Math.Sqrt((38.23989227900058 / (16)) + (41.32906782624265 / (11))) is less than -2.0595385527466985 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (11) - 2, .025) and -0.6311485690157653 = (63.10299360446771 - 102.9303577185385) / 63.10299360446771 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterUInt64(value: 0)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 16.635385196374624 > 5.4075626910680255.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -12.540705433686494 (T) = (0 -13.998757582261058) / Math.Sqrt((3.0352061780689965 / (16)) + (3.932758915421221 / (10))) is less than -2.0638985616205927 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (10) - 2, .025) and -2.164585569628731 = (4.423567406933285 - 13.998757582261058) / 4.423567406933285 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterUInt32(value: 0)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 9.328832128542192 > 5.448445539471863.
IsChangePoint: Marked as a change because one of 4/9/2023 1:38:49 AM, 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -10.268860880616941 (T) = (0 -12.859453565382353) / Math.Sqrt((3.1278054894562235 / (16)) + (3.829316808640326 / (10))) is less than -2.0638985616205927 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (10) - 2, .025) and -1.546635880663921 = (5.049584694467521 - 12.859453565382353) / 5.049584694467521 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 Windows 10.0.25094
Queue AmpereWindows
Baseline 0b081118dedcbc01d445f3f56222fde9d86f3f44
Compare e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Json.Tests.Perf_Basic

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
WriteBasicUtf16 - Duration of single invocation 2.80 ms 3.81 ms 1.36 0.61 False
WriteBasicUtf16 - Duration of single invocation 2.88 ms 3.91 ms 1.36 0.61 False
WriteBasicUtf8 - Duration of single invocation 3.52 ms 3.97 ms 1.13 0.60 False
WriteBasicUtf8 - Duration of single invocation 2.81 ms 4.09 ms 1.46 0.59 False
WriteBasicUtf8 - Duration of single invocation 3.87 ms 5.53 ms 1.43 0.60 False
WriteBasicUtf16 - Duration of single invocation 3.85 ms 4.94 ms 1.28 0.57 False
WriteBasicUtf8 - Duration of single invocation 973.76 ns 1.11 μs 1.14 0.60 False

graph
graph
graph
graph
graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

System.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted: False, SkipValidation: True, DataSize: 100000)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 3.812907593220339 > 2.8539300872173916.
IsChangePoint: Marked as a change because one of 3/28/2023 11:38:05 PM, 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -8.334633779644026 (T) = (0 -3739916.2930155215) / Math.Sqrt((40827193131.626434 / (16)) + (75079876123.91309 / (9))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (9) - 2, .025) and -0.3031075491038099 = (2869998.1790356333 - 3739916.2930155215) / 2869998.1790356333 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.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted: False, SkipValidation: False, DataSize: 100000)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 3.9127549818181815 > 3.1042736396976207.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -9.269780493667124 (T) = (0 -3985216.7093838328) / Math.Sqrt((77342258172.03287 / (16)) + (56029877609.757416 / (10))) is less than -2.0638985616205927 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (10) - 2, .025) and -0.31170051407746824 = (3038206.257155182 - 3985216.7093838328) / 3038206.257155182 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.Text.Json.Tests.Perf_Basic.WriteBasicUtf8(Formatted: False, SkipValidation: False, DataSize: 100000)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 3.974683142857143 > 3.164706776831683.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -11.31694287652374 (T) = (0 -4042865.9162945263) / Math.Sqrt((56352806483.7768 / (16)) + (45569821895.02112 / (10))) is less than -2.0638985616205927 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (10) - 2, .025) and -0.3361929912931084 = (3025660.1723243734 - 4042865.9162945263) / 3025660.1723243734 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.Text.Json.Tests.Perf_Basic.WriteBasicUtf8(Formatted: False, SkipValidation: True, DataSize: 100000)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 4.088906172413793 > 3.212669681506849.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -8.623600905507418 (T) = (0 -3857491.354753834) / Math.Sqrt((64401319977 / (16)) + (75235745355.48465 / (11))) is less than -2.0595385527466985 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (11) - 2, .025) and -0.30381430029711287 = (2958620.2221242627 - 3857491.354753834) / 2958620.2221242627 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.Text.Json.Tests.Perf_Basic.WriteBasicUtf8(Formatted: True, SkipValidation: False, DataSize: 100000)

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 5.533215591836735 > 4.61256871764706.
IsChangePoint: Marked as a change because one of 4/17/2023 5:51:51 AM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -4.498663599386456 (T) = (0 -5287329.568855132) / Math.Sqrt((205404458450.14987 / (17)) + (207399934173.2533 / (9))) is less than -2.0638985616205927 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (9) - 2, .025) and -0.18971981158047665 = (4444180.484673285 - 5287329.568855132) / 4444180.484673285 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.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted: True, SkipValidation: True, DataSize: 100000)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 4.937275454545455 > 4.362927866037736.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -7.298817537780796 (T) = (0 -5171818.515334103) / Math.Sqrt((187952928248.12357 / (16)) + (129308408839.43387 / (9))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (9) - 2, .025) and -0.29543948723678826 = (3992327.365569 - 5171818.515334103) / 3992327.365569 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.Text.Json.Tests.Perf_Basic.WriteBasicUtf8(Formatted: False, SkipValidation: True, DataSize: 10)

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 1.1061335114885924 > 1037.3463797861784.
IsChangePoint: Marked as a change because one of 3/17/2023 7:47:41 PM, 4/11/2023 2:19:19 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -3.13461985194122 (T) = (0 -1114.1661398809667) / Math.Sqrt((3891.9291050583383 / (10)) + (5133.53862744093 / (15))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (10) + (15) - 2, .025) and -0.08235514654991588 = (1029.3905317791953 - 1114.1661398809667) / 1029.3905317791953 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 Windows 10.0.25094
Queue AmpereWindows
Baseline 0b081118dedcbc01d445f3f56222fde9d86f3f44
Compare e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Single

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToStringWithFormat - Duration of single invocation 536.80 ns 593.08 ns 1.10 0.60 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Single.ToStringWithFormat(value: 12345, format: "F50")

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 593.0788005014762 > 528.0517136783491.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -8.216619656693998 (T) = (0 -679.0648844419748) / Math.Sqrt((1374.3639187668637 / (16)) + (3990.3543046153854 / (10))) is less than -2.0638985616205927 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (10) - 2, .025) and -0.36324172502742336 = (498.12507347390243 - 679.0648844419748) / 498.12507347390243 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 Windows 10.0.25094
Queue AmpereWindows
Baseline 0b081118dedcbc01d445f3f56222fde9d86f3f44
Compare e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Double

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToStringWithFormat - Duration of single invocation 563.35 ns 755.25 ns 1.34 0.66 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Double.ToStringWithFormat(value: 12345, format: "F50")

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 755.2521818031839 > 570.6509082031635.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -6.747904533273702 (T) = (0 -686.5950613163402) / Math.Sqrt((2115.034607953871 / (16)) + (5212.661271222418 / (9))) is less than -2.0686576104106944 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (9) - 2, .025) and -0.3552529420208837 = (506.6176504974229 - 686.5950613163402) / 506.6176504974229 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 Windows 10.0.25094
Queue AmpereWindows
Baseline 0b081118dedcbc01d445f3f56222fde9d86f3f44
Compare e3f55cbfd83162bc85d73d69c765e7f44c478e6d
Diff Diff
Configs CompilationMode:tiered, RunKind:micro

Regressions in System.Memory.Span<Char>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
IndexOfAnyFiveValues - Duration of single invocation 11.15 ns 13.95 ns 1.25 0.75 False
Reverse - Duration of single invocation 46.07 ns 83.01 ns 1.80 0.66 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Char&gt;*'

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Char>.IndexOfAnyFiveValues(Size: 33)

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 13.94690063713592 > 13.38092082244461.
IsChangePoint: Marked as a change because one of 3/21/2023 3:33:39 AM, 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -3.6463485818095993 (T) = (0 -15.393064511361185) / Math.Sqrt((4.432101857933948 / (16)) + (3.32385012966572 / (10))) is less than -2.0638985616205927 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (10) - 2, .025) and -0.2268717453743636 = (12.546596308373045 - 15.393064511361185) / 12.546596308373045 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.Memory.Span<Char>.Reverse(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 83.00688177963237 > 53.02006810609161.
IsChangePoint: Marked as a change because one of 1/11/2023 1:25:06 PM, 1/21/2023 9:40:41 PM, 2/1/2023 6:25:50 PM, 2/7/2023 2:48:42 AM, 3/10/2023 4:14:40 PM, 4/6/2023 11:23:56 PM, 4/12/2023 8:39:35 PM, 4/20/2023 5:25:38 AM falls between 4/11/2023 2:19:19 PM and 4/20/2023 5:25:38 AM.
IsRegressionStdDev: Marked as regression because -10.259552095299423 (T) = (0 -76.03003580919963) / Math.Sqrt((22.826927332682097 / (16)) + (51.79024627630255 / (10))) is less than -2.0638985616205927 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (10) - 2, .025) and -0.5309692046806495 = (49.6613750144367 - 76.03003580919963) / 49.6613750144367 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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