[Perf] Linux/x64: 1 Regression on 11/21/2025 7:55:45 AM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	4c32268e8462cc762abe8786ef4e939d90f07ea7
Compare	eec5790c979bca40017e35f85dd695ac4f0762b4
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Json.Tests.Perf_Strings

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
WriteStringsUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	9.82 ms	10.63 ms	1.08	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.Tests.Perf_Strings*'

Details

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: False, SkipValidation: True, Escaped: OneEscaped)

ETL Files

Histogram

JIT Disasms

Docs

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

[LoopedBard3]

Only two commits in range: c8675d9...8498fc7. Potentially due to #121851. May be alright due to the reason for the change being correctness.

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