[Perf] Linux/x64: 2 Regressions on 4/2/2024 8:11:01 PM

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	e3dc83a3cffabba389c9a25cd38494673b1861b6
Compare	85e8f688ffaf02743da29adff95e98ebd22a6f53
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.CtorDefaultSizeNonGeneric

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[ArrayList - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.CtorDefaultSizeNonGeneric.ArrayList.html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	5.53 ns	6.71 ns	1.21	0.08	False
[SortedList - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.CtorDefaultSizeNonGeneric.SortedList.html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	18.12 ns	20.20 ns	1.11	0.09	False

graph graph 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.CtorDefaultSizeNonGeneric*'

### System.Collections.CtorDefaultSizeNonGeneric.ArrayList #### ETL Files #### Histogram #### JIT Disasms ### System.Collections.CtorDefaultSizeNonGeneric.SortedList #### ETL Files #### Histogram #### JIT Disasms ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

dotnet / perf-autofiling-issues