[Perf] Linux/x64: 1 Regression on 6/19/2025 2:24:12 PM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	ViperUbuntu
Baseline	96e283d3938c40dd7eb3e8bb6c25827e66c45a26
Compare	81cff29bd40289cf0d592f130b28e0a1621e0adf
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Buffers.Text.Tests.Utf8ParserTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
TryParseUInt64Hex - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	6.39 ns	7.91 ns	1.24	0.04	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.Utf8ParserTests*'

System.Buffers.Text.Tests.Utf8ParserTests.TryParseUInt64Hex(value: FFFFFFFFFFFFFFFF)

ETL Files

Histogram

JIT Disasms

Docs

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

[DrewScoggins]

#116759 seems related.

Regressions:

• [Perf] Windows/x64: 1 Regression on 6/19/2025 2:24:12 PM +00:00 perf-autofiling-issues#58147
• [Perf] Linux/x64: 1 Regression on 6/19/2025 6:49:28 PM +00:00 perf-autofiling-issues#58135

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