[Perf] Linux/x64: System.Text.Json.Tests Regressions on 2/6/2025 1:04:24 PM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	ViperUbuntu
Baseline	ff604c23939bc59f856ef67f1f3d18dd685ff7a2
Compare	16782a4481f389e68314b16ea628c5af80f22783
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Json.Tests.Utf8JsonReaderCommentsTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Utf8JsonReaderCommentParsing - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	52.31 ns	55.36 ns	1.06	0.05	False
Utf8JsonReaderCommentParsing - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	63.95 ns	68.68 ns	1.07	0.10	False
Utf8JsonReaderCommentParsing - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	52.95 ns	60.32 ns	1.14	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.Text.Json.Tests.Utf8JsonReaderCommentsTests*'

Details

System.Text.Json.Tests.Utf8JsonReaderCommentsTests.Utf8JsonReaderCommentParsing(CommentHandling: Skip, SegmentSize: 0, TestCase: ShortSingleLine)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Utf8JsonReaderCommentsTests.Utf8JsonReaderCommentParsing(CommentHandling: Skip, SegmentSize: 100, TestCase: ShortSingleLine)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Utf8JsonReaderCommentsTests.Utf8JsonReaderCommentParsing(CommentHandling: Allow, SegmentSize: 0, TestCase: ShortMultiLine)

ETL Files

Histogram

JIT Disasms

Docs

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

[dotnet-policy-service]

Tagging subscribers to this area: @dotnet/area-system-text-json, @gregsdennis
See info in area-owners.md if you want to be subscribed.

[LoopedBard3]

Likely due to #112227, FYI @EgorBo. Compare range: adb2af2...666bb9d.

Related Regressions:

• [Perf] Windows/x64: 2 Regressions on 2/6/2025 1:04:24 PM +00:00 perf-autofiling-issues#49920

[EgorBo]

@EgorBot -amd -intel -commit 666bb9d vs previous --filter System.Text.Json.Tests.Utf8JsonReaderCommentsTests*