[Perf] Linux/x64: 15 Regressions on 2/8/2025 11:53:17 PM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	ffb98130bf22d12483b918e296ce2e836b7d90e4
Compare	ca9893f6bda7866370c58bd03ed60854019fe5de
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Regressions in System.Buffers.Text.Tests.Utf8FormatterTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
FormatterUInt32 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	8.89 ns	13.46 ns	1.51	0.44	False
FormatterDecimal - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	145.70 ns	159.63 ns	1.10	0.14	False
FormatterInt64 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	16.38 ns	22.94 ns	1.40	0.49	False
FormatterDouble - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	338.93 ns	373.80 ns	1.10	0.05	False
FormatterDouble - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	233.17 ns	271.82 ns	1.17	0.15	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.Text.Tests.Utf8FormatterTests*'

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterUInt32(value: 0)

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System.Buffers.Text.Tests.Utf8FormatterTests.FormatterDecimal(value: 123456.789)

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System.Buffers.Text.Tests.Utf8FormatterTests.FormatterInt64(value: 12345)

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System.Buffers.Text.Tests.Utf8FormatterTests.FormatterDouble(value: 1.7976931348623157E+308)

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System.Buffers.Text.Tests.Utf8FormatterTests.FormatterDouble(value: 12345)

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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	ffb98130bf22d12483b918e296ce2e836b7d90e4
Compare	ca9893f6bda7866370c58bd03ed60854019fe5de
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Regressions in System.Tests.Perf_String

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ToUpperInvariant - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	180.47 ns	207.78 ns	1.15	0.15	False
TrimEnd - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	14.26 ns	17.32 ns	1.21	0.54	False
ToUpperInvariant - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	20.82 ns	23.85 ns	1.15	0.50	False
Format_OneArg - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	971.56 ns	1.10 μs	1.13	0.08	False
ToLower - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	210.81 ns	237.07 ns	1.12	0.20	False
ToLower - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	94.36 ns	104.29 ns	1.11	0.20	False
Replace_Char - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	58.54 ns	66.23 ns	1.13	0.32	False
Format_OneArg - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.99 μs	2.14 μs	1.08	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.Tests.Perf_String*'

System.Tests.Perf_String.ToUpperInvariant(s: "This is a much longer piece of text that might benefit more from vectorization.")

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System.Tests.Perf_String.TrimEnd(s: "Test")

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

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System.Tests.Perf_String.Format_OneArg(s: "Testing {0}, {0:C}, {0:D5}, {0:E} - {0:F4}{0:G}{0:N} {0:X} !!", o: 8)

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System.Tests.Perf_String.ToLower(s: "This is a much longer piece of text that might benefit more from vectorization.")

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

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System.Tests.Perf_String.Replace_Char(text: "This is a very nice sentence", oldChar: 'i', newChar: 'I')

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System.Tests.Perf_String.Format_OneArg(s: "Testing {0}, {0:C}, {0:E} - {0:F4}{0:G}{0:N} , !!", o: 3.14159)

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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	ffb98130bf22d12483b918e296ce2e836b7d90e4
Compare	ca9893f6bda7866370c58bd03ed60854019fe5de
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Regressions in System.Text.Json.Serialization.Tests.WriteJson<ImmutableSortedDictionary<String, String>>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
SerializeToString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	46.00 μs	52.36 μs	1.14	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.Text.Json.Serialization.Tests.WriteJson<ImmutableSortedDictionary<String, String>>*'

System.Text.Json.Serialization.Tests.WriteJson<ImmutableSortedDictionary<String, String>>.SerializeToString(Mode: SourceGen)

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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	ffb98130bf22d12483b918e296ce2e836b7d90e4
Compare	ca9893f6bda7866370c58bd03ed60854019fe5de
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Regressions in System.Numerics.Tests.Perf_VectorOf<Int16>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
GetHashCodeBenchmark - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	78.99 ns	95.28 ns	1.21	0.19	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.Numerics.Tests.Perf_VectorOf<Int16>*'

System.Numerics.Tests.Perf_VectorOf<Int16>.GetHashCodeBenchmark

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JIT Disasms

Docs

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