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[Perf] Linux/x64: 4 Regressions on 9/27/2022 4:04:11 PM #78805

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performanceautofiler bot opened this issue Oct 4, 2022 · 8 comments
Closed

[Perf] Linux/x64: 4 Regressions on 9/27/2022 4:04:11 PM #78805

performanceautofiler bot opened this issue Oct 4, 2022 · 8 comments
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@kotlarmilos
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arch-x64 area-Codegen-Interpreter-mono os-linux Linux OS (any supported distro)

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@performanceautofiler
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Run Information

Architecture x64
OS ubuntu 18.04
Baseline 007563949e53bad52dfcdf95927b0ce00101df4d
Compare 1f688ed75133664aa20c838fa451e2ecf9f1f424
Diff Diff

Regressions in System.Net.Primitives.Tests.IPAddressPerformanceTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Ctor_Span - Duration of single invocation 38.17 ns 113.39 ns 2.97 0.03 False
Ctor_Bytes - Duration of single invocation 41.32 ns 115.20 ns 2.79 0.03 False
GetAddressBytes - Duration of single invocation 31.73 ns 84.37 ns 2.66 0.03 False
TryWriteBytes - Duration of single invocation 22.94 ns 73.31 ns 3.20 0.03 False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Net.Primitives.Tests.IPAddressPerformanceTests.Ctor_Span(address: [16, 32, 48, 64, 80, ...])

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 113.38536472819986 > 41.081126953527246.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -573.9698716870419 (T) = (0 -113.15522885014654) / Math.Sqrt((0.2683060587789468 / (26)) + (0.2386099705281585 / (38))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (38) - 2, .025) and -1.8860726844472462 = (39.207338560781444 - 113.15522885014654) / 39.207338560781444 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.Net.Primitives.Tests.IPAddressPerformanceTests.Ctor_Bytes(address: [16, 32, 48, 64, 80, ...])

```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 115.20384776238377 > 43.389346375651755.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -476.25748940860007 (T) = (0 -115.28240541792304) / Math.Sqrt((0.4289559560285226 / (26)) + (0.29926879395462297 / (40))) is less than -1.997729654317006 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (40) - 2, .025) and -1.7757742566452588 = (41.531621363637434 - 115.28240541792304) / 41.531621363637434 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.Net.Primitives.Tests.IPAddressPerformanceTests.GetAddressBytes(address: 1020:3040:5060:7080:9010:1112:1314:1516)

```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 84.37168810820093 > 33.8965873184253.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -315.42954157527174 (T) = (0 -83.199049558771) / Math.Sqrt((0.4863059027877561 / (26)) + (0.2684891863688202 / (39))) is less than -1.9983405425199077 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (39) - 2, .025) and -1.5410693136900087 = (32.74174738584902 - 83.199049558771) / 32.74174738584902 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.Net.Primitives.Tests.IPAddressPerformanceTests.TryWriteBytes(address: 1020:3040:5060:7080:9010:1112:1314:1516)

```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 73.30686374550373 > 24.02289664826891.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -708.8002141196165 (T) = (0 -73.33756683688654) / Math.Sqrt((0.12819942483917043 / (26)) + (0.004097138068264754 / (38))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (38) - 2, .025) and -2.1851416171381857 = (23.024899879578832 - 73.33756683688654) / 23.024899879578832 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 refs/heads/main untriaged New issue has not been triaged by the area owner labels Oct 4, 2022
@performanceautofiler
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Run Information

Architecture x64
OS ubuntu 18.04
Baseline 007563949e53bad52dfcdf95927b0ce00101df4d
Compare 1f688ed75133664aa20c838fa451e2ecf9f1f424
Diff Diff

Regressions in System.Net.Primitives.Tests.IPAddressPerformanceTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Ctor_Span - Duration of single invocation 243.21 ns 392.14 ns 1.61 0.06 False
GetAddressBytes - Duration of single invocation 248.28 ns 354.23 ns 1.43 0.07 False
Ctor_Bytes - Duration of single invocation 242.96 ns 394.99 ns 1.63 0.08 False
TryWriteBytes - Duration of single invocation 222.36 ns 335.05 ns 1.51 0.08 False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Net.Primitives.Tests.IPAddressPerformanceTests.Ctor_Span(address: [16, 32, 48, 64, 80, ...])

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 392.1427433201462 > 250.2405288243561.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -45.76536029112274 (T) = (0 -402.4174632200849) / Math.Sqrt((14.251018938870484 / (26)) + (474.898411406718 / (39))) is less than -1.9983405425199077 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (39) - 2, .025) and -0.6826093528551538 = (239.16274002473511 - 402.4174632200849) / 239.16274002473511 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.Net.Primitives.Tests.IPAddressPerformanceTests.GetAddressBytes(address: 1020:3040:5060:7080:9010:1112:1314:1516)

```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 354.2298052379228 > 262.21331826690056.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -31.22820454535586 (T) = (0 -363.7494285011303) / Math.Sqrt((43.32684371596665 / (26)) + (419.00453970237754 / (38))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (38) - 2, .025) and -0.44063394817017265 = (252.49261199428778 - 363.7494285011303) / 252.49261199428778 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.Net.Primitives.Tests.IPAddressPerformanceTests.Ctor_Bytes(address: [16, 32, 48, 64, 80, ...])

```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 394.9946998791459 > 261.4751401554384.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -58.336651069703755 (T) = (0 -411.0494190813555) / Math.Sqrt((32.545727298506435 / (26)) + (248.45163104825795 / (38))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (38) - 2, .025) and -0.6559288406395734 = (248.22891478995854 - 411.0494190813555) / 248.22891478995854 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.Net.Primitives.Tests.IPAddressPerformanceTests.TryWriteBytes(address: 1020:3040:5060:7080:9010:1112:1314:1516)

```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 335.0458643157161 > 231.34897044519997.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -41.21305130934805 (T) = (0 -331.0321460972355) / Math.Sqrt((12.220282934691816 / (26)) + (241.61349844599422 / (37))) is less than -1.9996235849941724 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (37) - 2, .025) and -0.49119060198265213 = (221.99184038385363 - 331.0321460972355) / 221.99184038385363 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 007563949e53bad52dfcdf95927b0ce00101df4d
Compare 1f688ed75133664aa20c838fa451e2ecf9f1f424
Diff Diff

Regressions in PerfLabTests.LowLevelPerf

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
NewDelegateClassEmptyInstanceFn - Duration of single invocation 22.90 ms 24.57 ms 1.07 0.08 False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

PerfLabTests.LowLevelPerf.NewDelegateClassEmptyInstanceFn

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 24.56930045714286 > 24.326842938461535.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -10.919075243687148 (T) = (0 -24388378.06581188) / Math.Sqrt((174748518699.47052 / (26)) + (422740347230.95245 / (39))) is less than -1.9983405425199077 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (39) - 2, .025) and -0.06307178463446259 = (22941421.6596839 - 24388378.06581188) / 22941421.6596839 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

@kotlarmilos
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Looks like regression - @stephentoub could you take a look?

31e0bd1

@kotlarmilos kotlarmilos removed the untriaged New issue has not been triaged by the area owner label Oct 12, 2022
@stephentoub
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It's definitely not 31e0bd1, which is changing Enumerable.Min/Max.

It's very likely 0075639...1f688ed, which is changing IPAddress. The change relies on Vector128, and in particular Vector128.LoadUnsafe, ShiftLeft, ShiftRight, and StoreUnsafe. Are those all appropriately optimized in whatever mono configuration this is?

@kotlarmilos
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Not sure if they are optimized for mono interpreter.

cc @BrzVlad

@kotlarmilos kotlarmilos mentioned this issue Oct 26, 2022
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@kotlarmilos
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Regression in change from _numbers[i] = (ushort)(address[i * 2] * 256 + address[i * 2 + 1]); to _numbers[i] = BinaryPrimitives.ReadUInt16BigEndian(address.Slice(i * 2));

@kotlarmilos kotlarmilos self-assigned this Nov 24, 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.

@kotlarmilos kotlarmilos transferred this issue from dotnet/perf-autofiling-issues Nov 24, 2022
@ghost ghost added the untriaged New issue has not been triaged by the area owner label Nov 24, 2022
@kotlarmilos kotlarmilos removed the untriaged New issue has not been triaged by the area owner label Nov 24, 2022
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ghost commented Nov 25, 2022

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

Issue Details

Run Information

Architecture x64
OS ubuntu 18.04
Baseline 007563949e53bad52dfcdf95927b0ce00101df4d
Compare 1f688ed75133664aa20c838fa451e2ecf9f1f424
Diff Diff

Regressions in System.Net.Primitives.Tests.IPAddressPerformanceTests

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Ctor_Span - Duration of single invocation 38.17 ns 113.39 ns 2.97 0.03 False
Ctor_Bytes - Duration of single invocation 41.32 ns 115.20 ns 2.79 0.03 False
GetAddressBytes - Duration of single invocation 31.73 ns 84.37 ns 2.66 0.03 False
TryWriteBytes - Duration of single invocation 22.94 ns 73.31 ns 3.20 0.03 False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Net.Primitives.Tests.IPAddressPerformanceTests.Ctor_Span(address: [16, 32, 48, 64, 80, ...])

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 113.38536472819986 > 41.081126953527246.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -573.9698716870419 (T) = (0 -113.15522885014654) / Math.Sqrt((0.2683060587789468 / (26)) + (0.2386099705281585 / (38))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (38) - 2, .025) and -1.8860726844472462 = (39.207338560781444 - 113.15522885014654) / 39.207338560781444 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.Net.Primitives.Tests.IPAddressPerformanceTests.Ctor_Bytes(address: [16, 32, 48, 64, 80, ...])

```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 115.20384776238377 > 43.389346375651755.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -476.25748940860007 (T) = (0 -115.28240541792304) / Math.Sqrt((0.4289559560285226 / (26)) + (0.29926879395462297 / (40))) is less than -1.997729654317006 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (40) - 2, .025) and -1.7757742566452588 = (41.531621363637434 - 115.28240541792304) / 41.531621363637434 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.Net.Primitives.Tests.IPAddressPerformanceTests.GetAddressBytes(address: 1020:3040:5060:7080:9010:1112:1314:1516)

```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 84.37168810820093 > 33.8965873184253.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -315.42954157527174 (T) = (0 -83.199049558771) / Math.Sqrt((0.4863059027877561 / (26)) + (0.2684891863688202 / (39))) is less than -1.9983405425199077 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (39) - 2, .025) and -1.5410693136900087 = (32.74174738584902 - 83.199049558771) / 32.74174738584902 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.Net.Primitives.Tests.IPAddressPerformanceTests.TryWriteBytes(address: 1020:3040:5060:7080:9010:1112:1314:1516)

```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 73.30686374550373 > 24.02289664826891.
IsChangePoint: Marked as a change because one of 9/27/2022 11:22:50 AM, 10/4/2022 5:30:44 AM falls between 9/25/2022 5:06:47 PM and 10/4/2022 5:30:44 AM.
IsRegressionStdDev: Marked as regression because -708.8002141196165 (T) = (0 -73.33756683688654) / Math.Sqrt((0.12819942483917043 / (26)) + (0.004097138068264754 / (38))) is less than -1.998971517032675 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (38) - 2, .025) and -2.1851416171381857 = (23.024899879578832 - 73.33756683688654) / 23.024899879578832 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: kotlarmilos
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area-Codegen-Interpreter-mono, refs/heads/main, ubuntu 18.04, Regression, x64
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Decided not to embark on these optimizations before having SSA.

out.log

@kotlarmilos kotlarmilos mentioned this issue Dec 9, 2022
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@jeffhandley jeffhandley added os-linux Linux OS (any supported distro) arch-x64 and removed refs/heads/main labels Dec 28, 2022
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