[Perf] Linux/x64: 9 Regressions on 10/10/2024 4:40:22 AM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	ViperUbuntu
Baseline	e8e3e148fd9c56182cf5676b47f2697779ec5c6e
Compare	11c86d8acba2f248b3afb5e8594f5f41ceebf098
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Encodings.Web.Tests.Perf_Encoders

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
EncodeUtf8 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	54.69 ns	57.52 ns	1.05	0.19	False
EncodeUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	40.23 ns	46.84 ns	1.16	0.05	False
EncodeUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	34.58 ns	38.13 ns	1.10	0.05	False
EncodeUtf8 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	33.33 ns	38.54 ns	1.16	0.02	True
EncodeUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	67.65 ns	76.18 ns	1.13	0.06	False
EncodeUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	61.30 ns	66.82 ns	1.09	0.05	False
EncodeUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	19.94 ns	21.39 ns	1.07	0.09	False
EncodeUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	46.86 ns	50.73 ns	1.08	0.06	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.Text.Encodings.Web.Tests.Perf_Encoders*'

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: Url,&lorem ipsum=dolor sit amet,512)

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: Url,&lorem ipsum=dolor sit amet,16)

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JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: JavaScript,&Hello+<World>!,16)

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Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: Url,&lorem ipsum=dolor sit amet,16)

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: Url,&lorem ipsum=dolor sit amet,512)

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: JavaScript,&Hello+<World>!,512)

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: UnsafeRelaxed,hello "there",16)

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JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: UnsafeRelaxed,hello "there",512)

ETL Files

Histogram

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	ViperUbuntu
Baseline	e8e3e148fd9c56182cf5676b47f2697779ec5c6e
Compare	11c86d8acba2f248b3afb5e8594f5f41ceebf098
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Buffers.Tests.ReadOnlySequenceTests<Char>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IterateTryGetTenSegments - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	26.40 ns	27.89 ns	1.06	0.02	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.Buffers.Tests.ReadOnlySequenceTests<Char>*'

System.Buffers.Tests.ReadOnlySequenceTests<Char>.IterateTryGetTenSegments

ETL Files

Histogram

JIT Disasms

Docs

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

[DrewScoggins]

Seems related to #108086.

[DrewScoggins]

Windows AMD Regressions: dotnet/perf-autofiling-issues#43127
Linux Intel Regressions: dotnet/perf-autofiling-issues#43083, dotnet/perf-autofiling-issues#43249

[AndyAyersMS]

Improvements:

• [Perf] Windows/x64: 10 Improvements on 10/10/2024 4:40:22 AM perf-autofiling-issues#43134
• [Perf] Linux/x64: 7 Improvements on 10/10/2024 4:40:22 AM perf-autofiling-issues#43100
• [Perf] Windows/x64: 3 Improvements on 10/10/2024 4:40:22 AM perf-autofiling-issues#43095
• [Perf] Linux/x64: 2 Improvements on 10/10/2024 4:40:22 AM perf-autofiling-issues#43215

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