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[Perf] Linux/x64: 16 Regressions on 1/18/2023 3:20:52 PM #12052

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performanceautofiler bot opened this issue Jan 24, 2023 · 1 comment · Fixed by dotnet/runtime#81208
Open

[Perf] Linux/x64: 16 Regressions on 1/18/2023 3:20:52 PM #12052

performanceautofiler bot opened this issue Jan 24, 2023 · 1 comment · Fixed by dotnet/runtime#81208
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arch-wasm arch-x64 branch-refs/heads/main kind-micro os-linux perf-regression untriaged

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performanceautofiler bot commented Jan 24, 2023 •
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Run Information

Architecture x64
OS ubuntu 18.04
Baseline 6962fc2368ab79fedf23c60a43b6744406b6a9cd
Compare c956f69bd2e3cc129f4c31ecae33e6d609ddc8dd
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
AnyWithPredicate_LastElementMatches - Duration of single invocation 11.74 μs 13.95 μs 1.19 0.07 False
SelectToList - Duration of single invocation 28.43 μs 30.58 μs 1.08 0.05 False
WhereSingle_LastElementMatches - Duration of single invocation 13.21 μs 15.20 μs 1.15 0.04 False
SelectToArray - Duration of single invocation 33.56 μs 36.49 μs 1.09 0.04 False
ToList - Duration of single invocation 15.00 μs 16.37 μs 1.09 0.07 False
AnyWithPredicate_LastElementMatches - Duration of single invocation 12.04 μs 13.65 μs 1.13 0.06 False
WhereSingleOrDefault_LastElementMatches - Duration of single invocation 13.24 μs 15.27 μs 1.15 0.02 False
All_AllElementsMatch - Duration of single invocation 11.73 μs 13.01 μs 1.11 0.04 False
Zip - Duration of single invocation 36.31 μs 38.99 μs 1.07 0.04 False
ToArray - Duration of single invocation 19.51 μs 21.06 μs 1.08 0.04 False

graph
graph
graph
graph
graph
graph
graph
graph
graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Linq.Tests.Perf_Enumerable.AnyWithPredicate_LastElementMatches(input: IEnumerable)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 13.946639697312492 > 12.329848185045105.
IsChangePoint: Marked as a change because one of 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -28.558441734106502 (T) = (0 -13814.402210664259) / Math.Sqrt((15080.492860665796 / (33)) + (136431.000386948 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.16834561664250827 = (11823.900405740304 - 13814.402210664259) / 11823.900405740304 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.Linq.Tests.Perf_Enumerable.SelectToList(input: IEnumerable)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 30.575192498249297 > 29.862652899795396.
IsChangePoint: Marked as a change because one of 12/7/2022 5:17:51 AM, 12/9/2022 1:52:32 PM, 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -19.232490394185387 (T) = (0 -30010.26286248801) / Math.Sqrt((135595.9064328314 / (33)) + (51651.998468588055 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.05119543220265812 = (28548.69983558146 - 30010.26286248801) / 28548.69983558146 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.Linq.Tests.Perf_Enumerable.WhereSingle_LastElementMatches(input: IEnumerable)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 15.199974583333331 > 13.919846521844054.
IsChangePoint: Marked as a change because one of 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -46.95378906538946 (T) = (0 -15228.390042381368) / Math.Sqrt((37780.861207858965 / (33)) + (14297.84263345467 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.14098845822382608 = (13346.664405429101 - 15228.390042381368) / 13346.664405429101 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.Linq.Tests.Perf_Enumerable.SelectToArray(input: Range)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 36.493267114837735 > 35.15949392278618.
IsChangePoint: Marked as a change because one of 12/7/2022 5:17:51 AM, 12/9/2022 1:52:32 PM, 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -25.110148379695723 (T) = (0 -36565.74624867883) / Math.Sqrt((147988.3773073817 / (33)) + (268893.2799651718 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.08550882617482562 = (33685.35139187322 - 36565.74624867883) / 33685.35139187322 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.Linq.Tests.Perf_Enumerable.ToList(input: IEnumerable)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 16.367556339941537 > 15.816739097402703.
IsChangePoint: Marked as a change because one of 12/7/2022 5:17:51 AM, 12/9/2022 1:52:32 PM, 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -12.672674586643321 (T) = (0 -16600.174894268734) / Math.Sqrt((282952.49219866423 / (33)) + (122593.35029234012 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.09343410669543105 = (15181.687485894936 - 16600.174894268734) / 15181.687485894936 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.Linq.Tests.Perf_Enumerable.AnyWithPredicate_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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 13.651631689512326 > 12.307025170639712.
IsChangePoint: Marked as a change because one of 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -30.93341084053244 (T) = (0 -13794.04311659266) / Math.Sqrt((22064.27541546931 / (33)) + (111672.48841559397 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.17172073046959166 = (11772.466559556737 - 13794.04311659266) / 11772.466559556737 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.Linq.Tests.Perf_Enumerable.WhereSingleOrDefault_LastElementMatches(input: IEnumerable)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 15.270906583658855 > 13.92544055012731.
IsChangePoint: Marked as a change because one of 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -47.702406616833 (T) = (0 -15299.842273682943) / Math.Sqrt((39305.1007685557 / (33)) + (15210.082489204768 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.14660272797558685 = (13343.629751078617 - 15299.842273682943) / 13343.629751078617 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.Linq.Tests.Perf_Enumerable.All_AllElementsMatch(input: IEnumerable)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 13.00732818586533 > 12.38561151997821.
IsChangePoint: Marked as a change because one of 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -19.524359231777055 (T) = (0 -13260.661211315362) / Math.Sqrt((118300.51750139389 / (33)) + (36843.430860309505 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.11324369662102805 = (11911.732580714153 - 13260.661211315362) / 11911.732580714153 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.Linq.Tests.Perf_Enumerable.Zip(input: IEnumerable)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 38.98952353616532 > 37.79951927203341.
IsChangePoint: Marked as a change because one of 12/9/2022 1:52:32 PM, 1/12/2023 3:42:01 AM, 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -29.39845315110588 (T) = (0 -39093.67447834798) / Math.Sqrt((248414.34485157393 / (33)) + (109802.08163550454 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.08591778158571185 = (36000.584152201125 - 39093.67447834798) / 36000.584152201125 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.Linq.Tests.Perf_Enumerable.ToArray(input: IEnumerable)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 21.056311846846846 > 20.500133169146043.
IsChangePoint: Marked as a change because one of 12/7/2022 5:17:51 AM, 12/9/2022 1:52:32 PM, 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -24.599341710136905 (T) = (0 -21248.600245059013) / Math.Sqrt((33506.244629308996 / (33)) + (109348.76596222044 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.08463178164983388 = (19590.61185975738 - 21248.600245059013) / 19590.61185975738 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information
Architecture x64
OS ubuntu 18.04
Baseline 6962fc2368ab79fedf23c60a43b6744406b6a9cd
Compare c956f69bd2e3cc129f4c31ecae33e6d609ddc8dd
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
ImmutableStack - Duration of single invocation 73.67 μs 84.69 μs 1.15 0.07 False

graph
Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Collections.CtorFromCollection<String>.ImmutableStack(Size: 512)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 84.68912166666667 > 77.3784155354227.
IsChangePoint: Marked as a change because one of 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -18.895607368311197 (T) = (0 -83700.47971424238) / Math.Sqrt((1933399.1810230738 / (33)) + (4996169.02259294 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.11835346609573046 = (74842.59874156608 - 83700.47971424238) / 74842.59874156608 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture x64
OS ubuntu 18.04
Baseline 6962fc2368ab79fedf23c60a43b6744406b6a9cd
Compare c956f69bd2e3cc129f4c31ecae33e6d609ddc8dd
Diff Diff

Regressions in System.Collections.CtorFromCollection<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ConcurrentQueue - Duration of single invocation 125.90 μs 135.99 μs 1.08 0.08 False
ImmutableStack - Duration of single invocation 73.49 μs 86.19 μs 1.17 0.07 False
ConcurrentBag - Duration of single invocation 134.30 μs 149.67 μs 1.11 0.06 False

graph
graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Collections.CtorFromCollection<Int32>.ConcurrentQueue(Size: 512)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 135.9878762959866 > 132.63749165066545.
IsChangePoint: Marked as a change because one of 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -16.332751354409734 (T) = (0 -138293.33530278166) / Math.Sqrt((7237518.851083257 / (33)) + (5358775.324452176 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.07986801045921256 = (128065.03569262376 - 138293.33530278166) / 128065.03569262376 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.Collections.CtorFromCollection&lt;Int32&gt;.ImmutableStack(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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 86.19359207280979 > 76.26292120841947.
IsChangePoint: Marked as a change because one of 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -21.29618565742906 (T) = (0 -81905.71477296896) / Math.Sqrt((3462296.9328643554 / (33)) + (2175397.919274929 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.12208010702728166 = (72994.53422266005 - 81905.71477296896) / 72994.53422266005 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.Collections.CtorFromCollection&lt;Int32&gt;.ConcurrentBag(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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 149.67130577830187 > 140.98040229289944.
IsChangePoint: Marked as a change because one of 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -17.569602663071237 (T) = (0 -146912.83046629463) / Math.Sqrt((4345528.684888358 / (33)) + (9228530.091640826 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.08502814632840537 = (135400.01792896213 - 146912.83046629463) / 135400.01792896213 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture x64
OS ubuntu 18.04
Baseline 6962fc2368ab79fedf23c60a43b6744406b6a9cd
Compare c956f69bd2e3cc129f4c31ecae33e6d609ddc8dd
Diff Diff

Regressions in System.Memory.Span<Int32>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
GetPinnableReference - Duration of single invocation 44.05 ns 46.61 ns 1.06 0.06 False
GetPinnableReference - Duration of single invocation 44.02 ns 46.65 ns 1.06 0.10 False

graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Int32>.GetPinnableReference(Size: 33)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 46.610098796053094 > 46.28691183185739.
IsChangePoint: Marked as a change because one of 12/9/2022 1:52:32 PM, 1/12/2023 3:42:01 AM, 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -13.98496271065491 (T) = (0 -46.998280046524904) / Math.Sqrt((0.45524565226396907 / (33)) + (0.546993034740162 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.0557010472616871 = (44.51855017898355 - 46.998280046524904) / 44.51855017898355 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&lt;Int32&gt;.GetPinnableReference(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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 46.64698831122698 > 46.561926595672475.
IsChangePoint: Marked as a change because one of 11/15/2022 10:02:59 PM, 12/9/2022 1:52:32 PM, 1/10/2023 11:45:30 PM, 1/11/2023 11:00:48 PM, 1/18/2023 11:30:09 AM, 1/24/2023 10:20:22 AM falls between 1/15/2023 6:48:05 PM and 1/24/2023 10:20:22 AM.
IsRegressionStdDev: Marked as regression because -13.06969790558596 (T) = (0 -47.1077069172632) / Math.Sqrt((0.702359397104292 / (33)) + (0.6110872838351031 / (31))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (31) - 2, .025) and -0.059518715267036115 = (44.46142030194379 - 47.1077069172632) / 44.46142030194379 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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[mono][interp] Extract code outside of interp main loop BrzVlad/runtime
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