[Perf] Linux/x64: 2 Regressions on 1/20/2024 6:28:56 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	ff93f2dc3619d28b87404d1f86439f4b1d6e8d02
Compare	bd84a96ba5ad9e4eb8bff8ed4b93de2d88b1533f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsKeyTrue<String, String>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
FrozenDictionary - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	5.16 μs	5.91 μs	1.15	0.02	True
ConcurrentDictionary - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	9.04 μs	9.94 μs	1.10	0.03	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.Collections.ContainsKeyTrue<String, String>*'

Payloads

Baseline
Compare

System.Collections.ContainsKeyTrue<String, String>.FrozenDictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.ContainsKeyTrue<String, String>.ConcurrentDictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

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

[EgorBo]

Regressed by dotnet/runtime#96609 and improved by dotnet/runtime#97222