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[Perf] Linux/x64: 18 Regressions on 3/15/2023 12:03:45 AM #14193

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performanceautofiler bot opened this issue Mar 21, 2023 · 1 comment
Closed

[Perf] Linux/x64: 18 Regressions on 3/15/2023 12:03:45 AM #14193

performanceautofiler bot opened this issue Mar 21, 2023 · 1 comment
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@kunalspathak
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arch-x64 branch-refs/heads/main kind-micro os-linux perf-regression runtime-coreclr untriaged

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performanceautofiler bot commented Mar 21, 2023 •
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Run Information

Name Value
Architecture x64
OS ubuntu 18.04
Queue TigerUbuntu
Baseline a78f9bde2edd384f5d26c9d394eb7fcc5f48a664
Compare 1cfda5e9a887d39004644c2f96a87b31fcca0ac7
Diff Diff
Configs CompliationMode:tiered, RunKind:micro

Regressions in System.Collections.TryGetValueFalse<String, String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Dictionary - Duration of single invocation 7.04 μs 8.32 μs 1.18 0.04 False
IDictionary - Duration of single invocation 8.19 μs 10.13 μs 1.24 0.06 False

graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

System.Collections.TryGetValueFalse<String, String>.Dictionary(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 8.318810183959767 > 7.3768355090424205.
IsChangePoint: Marked as a change because one of 1/13/2023 4:18:46 AM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -31.377339040469593 (T) = (0 -8456.195272148061) / Math.Sqrt((15196.441563323971 / (28)) + (51020.33086429373 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.21004982095350958 = (6988.303395214461 - 8456.195272148061) / 6988.303395214461 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.TryGetValueFalse&lt;String, String&gt;.IDictionary(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 10.126628065205278 > 8.653605969642149.
IsChangePoint: Marked as a change because one of 1/13/2023 4:18:46 AM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -22.931634850264743 (T) = (0 -9853.937271605864) / Math.Sqrt((43034.88356689121 / (28)) + (64140.43522794543 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.1624469730964345 = (8476.8918494043 - 9853.937271605864) / 8476.8918494043 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 x64
OS ubuntu 18.04
Queue TigerUbuntu
Baseline a78f9bde2edd384f5d26c9d394eb7fcc5f48a664
Compare 1cfda5e9a887d39004644c2f96a87b31fcca0ac7
Diff Diff
Configs CompliationMode:tiered, RunKind:micro

Regressions in PerfLabTests.GetMember

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
GetMethod15 - Duration of single invocation 854.62 μs 956.48 μs 1.12 0.03 False
GetMethod20 - Duration of single invocation 1.15 ms 1.21 ms 1.05 0.04 False
GetMethod1 - Duration of single invocation 55.79 μs 59.18 μs 1.06 0.20 False
GetMethod10 - Duration of single invocation 569.63 μs 615.95 μs 1.08 0.03 False
GetMethod12 - Duration of single invocation 683.45 μs 741.16 μs 1.08 0.05 False
GetMethod5 - Duration of single invocation 283.72 μs 301.35 μs 1.06 0.05 False

graph
graph
graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

PerfLabTests.GetMember.GetMethod15

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 956.481950892857 > 905.3295711947186.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -20.499534154535947 (T) = (0 -919204.2962078236) / Math.Sqrt((88895400.6473807 / (28)) + (146941818.40609008 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.06694144688524897 = (861532.0914669512 - 919204.2962078236) / 861532.0914669512 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.

```#### PerfLabTests.GetMember.GetMethod20

```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 1.212190970414201 > 1.2091660029910714.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 3/14/2023 5:06:59 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -21.849085959633232 (T) = (0 -1224424.6926104913) / Math.Sqrt((119698485.31734651 / (27)) + (216116707.48539856 / (32))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (27) + (32) - 2, .025) and -0.06347206547459483 = (1151346.3610010934 - 1224424.6926104913) / 1151346.3610010934 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.

```#### PerfLabTests.GetMember.GetMethod1

```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 59.184260078463204 > 58.63747574227653.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -7.102803051286159 (T) = (0 -60096.547869579146) / Math.Sqrt((2887035.431975517 / (28)) + (4618671.950779856 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.06308603159972864 = (56530.277026729476 - 60096.547869579146) / 56530.277026729476 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.

```#### PerfLabTests.GetMember.GetMethod10

```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 615.9484516025641 > 599.27475265625.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -18.46190935741678 (T) = (0 -610467.5823762098) / Math.Sqrt((60341320.21668838 / (28)) + (49358157.99945948 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.06218266146550993 = (574729.3799109262 - 610467.5823762098) / 574729.3799109262 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.

```#### PerfLabTests.GetMember.GetMethod12

```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 741.1644793560605 > 723.4029602445653.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -10.370849432848086 (T) = (0 -733605.8268207838) / Math.Sqrt((255727436.6064302 / (28)) + (77971891.50199448 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.050694412331413405 = (698210.4579703308 - 733605.8268207838) / 698210.4579703308 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.

```#### PerfLabTests.GetMember.GetMethod5

```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 301.3452983173077 > 300.6686184318182.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 3/14/2023 5:06:59 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -13.621827299880495 (T) = (0 -305372.6846029405) / Math.Sqrt((34139109.63240927 / (27)) + (14769198.261038575 / (32))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (27) + (32) - 2, .025) and -0.06225099505639291 = (287476.9579168329 - 305372.6846029405) / 287476.9579168329 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 x64
OS ubuntu 18.04
Queue TigerUbuntu
Baseline a78f9bde2edd384f5d26c9d394eb7fcc5f48a664
Compare 1cfda5e9a887d39004644c2f96a87b31fcca0ac7
Diff Diff
Configs CompliationMode:tiered, RunKind:micro

Regressions in System.Collections.CreateAddAndRemove<String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Queue - Duration of single invocation 3.25 μs 3.67 μs 1.13 0.04 False
Stack - Duration of single invocation 2.92 μs 3.35 μs 1.14 0.17 False

graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

System.Collections.CreateAddAndRemove<String>.Queue(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 3.6652452634378885 > 3.4170261470117453.
IsChangePoint: Marked as a change because one of 2/9/2023 4:27:10 AM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -12.873642661098883 (T) = (0 -3523.1651673320935) / Math.Sqrt((270.0013749409136 / (28)) + (13207.612286537327 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.0825686406850852 = (3254.4496809943785 - 3523.1651673320935) / 3254.4496809943785 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.CreateAddAndRemove&lt;String&gt;.Stack(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 3.34582547486716 > 3.051636050268457.
IsChangePoint: Marked as a change because one of 1/9/2023 3:58:12 PM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -16.440874167962136 (T) = (0 -3502.2257954694783) / Math.Sqrt((11785.90034259341 / (28)) + (15212.225339460414 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.1651483062275209 = (3005.819754232721 - 3502.2257954694783) / 3005.819754232721 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 x64
OS ubuntu 18.04
Queue TigerUbuntu
Baseline a78f9bde2edd384f5d26c9d394eb7fcc5f48a664
Compare 1cfda5e9a887d39004644c2f96a87b31fcca0ac7
Diff Diff
Configs CompliationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsKeyFalse<String, String>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
Dictionary - Duration of single invocation 6.92 μs 8.29 μs 1.20 0.10 False
IDictionary - Duration of single invocation 8.00 μs 9.39 μs 1.17 0.07 False

graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

System.Collections.ContainsKeyFalse<String, String>.Dictionary(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 8.293665563317358 > 7.160752529880348.
IsChangePoint: Marked as a change because one of 1/13/2023 4:18:46 AM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -28.328411057577885 (T) = (0 -8332.132049618302) / Math.Sqrt((8919.29560528675 / (28)) + (83080.37797114764 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.22876602541224894 = (6780.893902745142 - 8332.132049618302) / 6780.893902745142 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.ContainsKeyFalse&lt;String, String&gt;.IDictionary(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 9.38562908955224 > 8.490310739971545.
IsChangePoint: Marked as a change because one of 1/13/2023 4:18:46 AM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -19.55688928318997 (T) = (0 -9508.81032048217) / Math.Sqrt((82338.39452331713 / (28)) + (33956.06014017494 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.15030081581976834 = (8266.368405298976 - 9508.81032048217) / 8266.368405298976 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 x64
OS ubuntu 18.04
Queue TigerUbuntu
Baseline a78f9bde2edd384f5d26c9d394eb7fcc5f48a664
Compare 1cfda5e9a887d39004644c2f96a87b31fcca0ac7
Diff Diff
Configs CompliationMode: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
EndsWith - Duration of single invocation 10.46 ns 12.76 ns 1.22 0.13 False
IndexOfAnyTwoValues - Duration of single invocation 14.44 ns 15.59 ns 1.08 0.08 False
IndexOfValue - Duration of single invocation 10.69 ns 11.83 ns 1.11 0.09 False
SequenceEqual - Duration of single invocation 17.07 ns 22.25 ns 1.30 0.09 False

graph
graph
graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Char>.EndsWith(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 12.760668448728211 > 11.43353672158884.
IsChangePoint: Marked as a change because one of 1/19/2023 8:10:32 PM, 3/3/2023 4:59:02 PM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -10.060316845506252 (T) = (0 -12.125896742535819) / Math.Sqrt((0.18441751748126073 / (28)) + (0.2287901200139761 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.10870795783873297 = (10.936961944580531 - 12.125896742535819) / 10.936961944580531 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;Char&gt;.IndexOfAnyTwoValues(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 15.589740113335004 > 15.063952368618681.
IsChangePoint: Marked as a change because one of 2/17/2023 9:53:52 PM, 3/3/2023 11:43:56 AM, 3/16/2023 12:15:41 AM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -9.78467862931164 (T) = (0 -15.431810170617352) / Math.Sqrt((0.11633187868142968 / (36)) + (0.28410736782424595 / (23))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (36) + (23) - 2, .025) and -0.08595692301395566 = (14.210333617827157 - 15.431810170617352) / 14.210333617827157 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;Char&gt;.IndexOfValue(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 11.83034586703233 > 11.136261663264337.
IsChangePoint: Marked as a change because one of 3/3/2023 8:38:01 AM, 3/16/2023 12:15:41 AM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -18.988749665985384 (T) = (0 -11.858092084147405) / Math.Sqrt((0.09631421875118576 / (36)) + (0.023013525614421913 / (23))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (36) + (23) - 2, .025) and -0.1075283966195531 = (10.70680636301624 - 11.858092084147405) / 10.70680636301624 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;Char&gt;.SequenceEqual(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 22.245780094809042 > 17.92610690535502.
IsChangePoint: Marked as a change because one of 1/19/2023 8:10:32 PM, 3/17/2023 1:30:52 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -42.439100635355054 (T) = (0 -22.16064230961649) / Math.Sqrt((0.4848097815452607 / (46)) + (0.022711133617910013 / (13))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (46) + (13) - 2, .025) and -0.2694757882164207 = (17.45653010109913 - 22.16064230961649) / 17.45653010109913 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 x64
OS ubuntu 18.04
Queue TigerUbuntu
Baseline a78f9bde2edd384f5d26c9d394eb7fcc5f48a664
Compare 1cfda5e9a887d39004644c2f96a87b31fcca0ac7
Diff Diff
Configs CompliationMode:tiered, RunKind:micro

Regressions in System.Memory.Span<Byte>

Benchmark Baseline Test Test/Base Test Quality Edge Detector Baseline IR Compare IR IR Ratio Baseline ETL Compare ETL
SequenceEqual - Duration of single invocation 9.71 ns 11.81 ns 1.22 0.13 False
IndexOfAnyFourValues - Duration of single invocation 12.16 ns 13.71 ns 1.13 0.16 False

graph
graph
Test Report

Repro

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

Payloads

Baseline
Compare

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

Payloads

Baseline
Compare

Histogram

System.Memory.Span<Byte>.SequenceEqual(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 11.811067347531765 > 10.12893031599746.
IsChangePoint: Marked as a change because one of 1/19/2023 8:10:32 PM, 3/3/2023 4:59:02 PM, 3/14/2023 8:42:09 PM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -15.890689971336572 (T) = (0 -11.61763018141643) / Math.Sqrt((0.2137902119573345 / (28)) + (0.19429006678615401 / (31))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (31) - 2, .025) and -0.19229070283851216 = (9.743957705749184 - 11.61763018141643) / 9.743957705749184 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;Byte&gt;.IndexOfAnyFourValues(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 13.713397329136969 > 12.790941393670458.
IsChangePoint: Marked as a change because one of 3/16/2023 12:15:41 AM, 3/21/2023 3:33:39 AM falls between 3/11/2023 9:11:51 PM and 3/21/2023 3:33:39 AM.
IsRegressionStdDev: Marked as regression because -9.462446467565231 (T) = (0 -13.675471929063432) / Math.Sqrt((0.10866609269718074 / (36)) + (0.5313998027132798 / (23))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (36) + (23) - 2, .025) and -0.12591482332015566 = (12.146098129107578 - 13.675471929063432) / 12.146098129107578 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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