[Perf] Linux/x64: 3 Improvements on 8/15/2023 7:48:35 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	3eeb275afaf6d93a447860f36be28e96d6ddc11b
Compare	d2678442c80cdd15ca7d14c013d31a7683de1ed6
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Improvements in PerfLabTests.LowLevelPerf

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
InterfaceInterfaceMethod - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	2.52 ms	2.30 ms	0.91	0.04	True

Test Report

Repro

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

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

Payloads

Baseline
Compare

PerfLabTests.LowLevelPerf.InterfaceInterfaceMethod

ETL Files

Histogram

Description of detection logic

IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed: Marked as improvement because we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/14/2023 10:44:26 PM, 8/21/2023 10:38:45 PM falls between 8/13/2023 2:50:54 AM and 8/21/2023 10:38:45 PM.
IsImprovementStdDev: Marked as improvement because 76.12642872503466 (T) = (0 -2301644.3103381917) / Math.Sqrt((76570701.24486277 / (11)) + (11532314.128012681 / (15))) is greater than 2.063898561620592 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (11) + (15) - 2, .975) and 0.08421238484966241 = (2513294.864727286 - 2301644.3103381917) / 2513294.864727286 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

JIT Disasms

Docs

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

---

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	3eeb275afaf6d93a447860f36be28e96d6ddc11b
Compare	d2678442c80cdd15ca7d14c013d31a7683de1ed6
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Improvements in System.Buffers.Tests.ReadOnlySequenceTests<Byte>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
FirstSpanSingleSegment - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.12 ns	5.90 ns	0.83	0.14	True

Test Report

Repro

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

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.ReadOnlySequenceTests<Byte>*'

Payloads

Baseline
Compare

System.Buffers.Tests.ReadOnlySequenceTests<Byte>.FirstSpanSingleSegment

ETL Files

Histogram

Description of detection logic

IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed: Marked as improvement because we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/14/2023 10:44:26 PM, 8/21/2023 10:38:45 PM falls between 8/13/2023 2:50:54 AM and 8/21/2023 10:38:45 PM.
IsImprovementStdDev: Marked as improvement because 7.540184712710728 (T) = (0 -5.89357335970677) / Math.Sqrt((0.16791422523178945 / (11)) + (0.0010540394425342101 / (15))) is greater than 2.063898561620592 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (11) + (15) - 2, .975) and 0.1367655621901242 = (6.827314923463246 - 5.89357335970677) / 6.827314923463246 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

JIT Disasms

Docs

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

---

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	3eeb275afaf6d93a447860f36be28e96d6ddc11b
Compare	d2678442c80cdd15ca7d14c013d31a7683de1ed6
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Improvements in System.Tests.Perf_String

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IndexerCheckPathLength - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	113.18 ns	83.69 ns	0.74	0.07	False

Test Report

Repro

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

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

Payloads

Baseline
Compare

System.Tests.Perf_String.IndexerCheckPathLength

ETL Files

Histogram

Description of detection logic

IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed: Marked as improvement because we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2023 8:47:51 AM, 8/14/2023 10:44:26 PM, 8/21/2023 10:38:45 PM falls between 8/13/2023 2:50:54 AM and 8/21/2023 10:38:45 PM.
IsImprovementStdDev: Marked as improvement because 2.852078695779267 (T) = (0 -83.53863702313468) / Math.Sqrt((242.6467960780429 / (11)) + (0.02608713397544731 / (15))) is greater than 2.063898561620592 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (11) + (15) - 2, .975) and 0.13819468630094886 = (96.93446500645156 - 83.53863702313468) / 96.93446500645156 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

JIT Disasms

Docs

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

[EgorBo]

First one is dotnet/runtime#90412, the rest could be just noise