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Regressions in System.Tests.Perf_String Case Conversion #80245

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performanceautofiler bot opened this issue Dec 29, 2022 · 5 comments
Closed

Regressions in System.Tests.Perf_String Case Conversion #80245

performanceautofiler bot opened this issue Dec 29, 2022 · 5 comments
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area-System.Buffers tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark

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Run Information

Architecture arm64
OS Windows 10.0.25094
Baseline 5fdc1882a63dd1e34ad852f9bfc1964c511e5bfb
Compare f85d515e2f64ddd5b014585d2d10a005ce55943e
Diff Diff

Regressions in System.Tests.Perf_String

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToUpperInvariant - Duration of single invocation 28.29 ns 39.48 ns 1.40 0.72 False
ToUpperInvariant - Duration of single invocation 9.05 ns 11.98 ns 1.32 0.77 False
ToUpper - Duration of single invocation 19.02 ns 29.27 ns 1.54 0.71 False
ToLowerInvariant - Duration of single invocation 8.80 ns 12.60 ns 1.43 0.81 False
ToLower - Duration of single invocation 42.54 ns 57.78 ns 1.36 0.68 False
ToLowerInvariant - Duration of single invocation 24.94 ns 36.73 ns 1.47 0.72 False
ToUpper - Duration of single invocation 45.27 ns 52.32 ns 1.16 0.58 False
ToUpper - Duration of single invocation 44.98 ns 56.00 ns 1.24 0.62 False

graph
graph
graph
graph
graph
graph
graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_String.ToUpperInvariant(s: "TeSt")

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 39.47873435471007 > 29.55419313532894.
IsChangePoint: Marked as a change because one of 12/21/2022 4:32:37 PM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -7.516307420817177 (T) = (0 -36.31159282300522) / Math.Sqrt((6.485055935336934 / (14)) + (12.04881980952785 / (19))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (14) + (19) - 2, .025) and -0.2768748064919276 = (28.437864572461343 - 36.31159282300522) / 28.437864572461343 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_String.ToUpperInvariant(s: "TEST")

```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 11.975986271581252 > 8.57081540231266.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -10.528910434957075 (T) = (0 -12.670162918498763) / Math.Sqrt((0.9342617633884106 / (13)) + (1.3978707752175097 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.455349894058753 = (8.705922177355973 - 12.670162918498763) / 8.705922177355973 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_String.ToUpper(s: "TEST")

```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 29.270366724424157 > 23.711182658784026.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -4.729387196157553 (T) = (0 -29.081157109263945) / Math.Sqrt((7.270743704699143 / (13)) + (18.92406524654969 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.249283338924745 = (23.278271792445437 - 29.081157109263945) / 23.278271792445437 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_String.ToLowerInvariant(s: "test")

```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 12.60029331392485 > 10.08381371016749.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -13.323683013167399 (T) = (0 -13.312894081097156) / Math.Sqrt((0.7323565603260572 / (13)) + (0.922625991673902 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.47137407848493657 = (9.047933000699148 - 13.312894081097156) / 9.047933000699148 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_String.ToLower(s: "TEST")

```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 57.78163572052392 > 45.89678537255734.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -9.773996404508368 (T) = (0 -57.90920894745648) / Math.Sqrt((18.524028895609252 / (13)) + (15.211097039304933 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.3324730115054145 = (43.45994886758062 - 57.90920894745648) / 43.45994886758062 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_String.ToLowerInvariant(s: "TeSt")

```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 36.725989098628034 > 27.801417460552333.
IsChangePoint: Marked as a change because one of 12/21/2022 4:32:37 PM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -8.310103036986714 (T) = (0 -37.18313751161428) / Math.Sqrt((13.233221291647697 / (14)) + (5.573183595058514 / (19))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (14) + (19) - 2, .025) and -0.3310691743603315 = (27.93478973734275 - 37.18313751161428) / 27.93478973734275 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_String.ToUpper(s: "test")

```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 52.323958191242674 > 47.40437991582669.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -4.4004308610229765 (T) = (0 -50.867662849307834) / Math.Sqrt((11.393547554407128 / (13)) + (35.81423435130752 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.164521962629386 = (43.681153710878256 - 50.867662849307834) / 43.681153710878256 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_String.ToUpper(s: "TeSt")

```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 56.00128879385484 > 46.33821886816768.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -6.77350029426643 (T) = (0 -52.110090547734465) / Math.Sqrt((11.084131575618784 / (13)) + (14.915230097096984 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.196652975524235 = (43.54653488820002 - 52.110090547734465) / 43.54653488820002 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
@performanceautofiler performanceautofiler bot added RunKind=micro untriaged New issue has not been triaged by the area owner labels Dec 29, 2022
@dakersnar dakersnar changed the title [Perf] Windows/arm64: 8 Regressions on 12/21/2022 9:59:33 PM Regressions in System.Tests.Perf_String Case Conversion Jan 5, 2023
@dakersnar
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Likely caused by #75012

@dakersnar dakersnar transferred this issue from dotnet/perf-autofiling-issues Jan 5, 2023
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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.

@ghost
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ghost commented Jan 5, 2023

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

Issue Details

Run Information

Architecture arm64
OS Windows 10.0.25094
Baseline 5fdc1882a63dd1e34ad852f9bfc1964c511e5bfb
Compare f85d515e2f64ddd5b014585d2d10a005ce55943e
Diff Diff

Regressions in System.Tests.Perf_String

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
ToUpperInvariant - Duration of single invocation 28.29 ns 39.48 ns 1.40 0.72 False
ToUpperInvariant - Duration of single invocation 9.05 ns 11.98 ns 1.32 0.77 False
ToUpper - Duration of single invocation 19.02 ns 29.27 ns 1.54 0.71 False
ToLowerInvariant - Duration of single invocation 8.80 ns 12.60 ns 1.43 0.81 False
ToLower - Duration of single invocation 42.54 ns 57.78 ns 1.36 0.68 False
ToLowerInvariant - Duration of single invocation 24.94 ns 36.73 ns 1.47 0.72 False
ToUpper - Duration of single invocation 45.27 ns 52.32 ns 1.16 0.58 False
ToUpper - Duration of single invocation 44.98 ns 56.00 ns 1.24 0.62 False

graph
graph
graph
graph
graph
graph
graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_String.ToUpperInvariant(s: "TeSt")

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 39.47873435471007 > 29.55419313532894.
IsChangePoint: Marked as a change because one of 12/21/2022 4:32:37 PM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -7.516307420817177 (T) = (0 -36.31159282300522) / Math.Sqrt((6.485055935336934 / (14)) + (12.04881980952785 / (19))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (14) + (19) - 2, .025) and -0.2768748064919276 = (28.437864572461343 - 36.31159282300522) / 28.437864572461343 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_String.ToUpperInvariant(s: "TEST")

```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 11.975986271581252 > 8.57081540231266.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -10.528910434957075 (T) = (0 -12.670162918498763) / Math.Sqrt((0.9342617633884106 / (13)) + (1.3978707752175097 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.455349894058753 = (8.705922177355973 - 12.670162918498763) / 8.705922177355973 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_String.ToUpper(s: "TEST")

```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 29.270366724424157 > 23.711182658784026.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -4.729387196157553 (T) = (0 -29.081157109263945) / Math.Sqrt((7.270743704699143 / (13)) + (18.92406524654969 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.249283338924745 = (23.278271792445437 - 29.081157109263945) / 23.278271792445437 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_String.ToLowerInvariant(s: "test")

```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 12.60029331392485 > 10.08381371016749.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -13.323683013167399 (T) = (0 -13.312894081097156) / Math.Sqrt((0.7323565603260572 / (13)) + (0.922625991673902 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.47137407848493657 = (9.047933000699148 - 13.312894081097156) / 9.047933000699148 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_String.ToLower(s: "TEST")

```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 57.78163572052392 > 45.89678537255734.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -9.773996404508368 (T) = (0 -57.90920894745648) / Math.Sqrt((18.524028895609252 / (13)) + (15.211097039304933 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.3324730115054145 = (43.45994886758062 - 57.90920894745648) / 43.45994886758062 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_String.ToLowerInvariant(s: "TeSt")

```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 36.725989098628034 > 27.801417460552333.
IsChangePoint: Marked as a change because one of 12/21/2022 4:32:37 PM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -8.310103036986714 (T) = (0 -37.18313751161428) / Math.Sqrt((13.233221291647697 / (14)) + (5.573183595058514 / (19))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (14) + (19) - 2, .025) and -0.3310691743603315 = (27.93478973734275 - 37.18313751161428) / 27.93478973734275 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_String.ToUpper(s: "test")

```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 52.323958191242674 > 47.40437991582669.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -4.4004308610229765 (T) = (0 -50.867662849307834) / Math.Sqrt((11.393547554407128 / (13)) + (35.81423435130752 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.164521962629386 = (43.681153710878256 - 50.867662849307834) / 43.681153710878256 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_String.ToUpper(s: "TeSt")

```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 56.00128879385484 > 46.33821886816768.
IsChangePoint: Marked as a change because one of 12/21/2022 10:31:08 AM, 12/28/2022 6:20:56 PM falls between 12/19/2022 10:34:07 PM and 12/28/2022 6:20:56 PM.
IsRegressionStdDev: Marked as regression because -6.77350029426643 (T) = (0 -52.110090547734465) / Math.Sqrt((11.084131575618784 / (13)) + (14.915230097096984 / (20))) is less than -2.0395134463927462 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (13) + (20) - 2, .025) and -0.196652975524235 = (43.54653488820002 - 52.110090547734465) / 43.54653488820002 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

Author: performanceautofiler[bot]
Assignees: tannergooding
Labels:

area-System.Buffers, untriaged, RunKind=micro
Milestone: -

@dakersnar dakersnar added tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark labels Jan 5, 2023
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cc @adamsitnik

@dakersnar dakersnar mentioned this issue Jan 5, 2023
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@adamsitnik adamsitnik mentioned this issue Jan 31, 2023
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tannergooding commented Aug 7, 2023 •
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All of these are currently faster than their baseline numbers in the regressions given above.

@ghost ghost removed the untriaged New issue has not been triaged by the area owner label Aug 7, 2023
@ghost ghost locked as resolved and limited conversation to collaborators Sep 7, 2023
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