[Perf] Linux/x64: 2 Regressions on 12/14/2023 1:47:56 AM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	1e135d18fe600b73e6611458b6df95804cab74fa
Compare	f59ef7f3c66c5647b66678de7bf7e73dd7ab224c
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Regressions in System.Text.Json.Tests.Perf_Reader

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ReadReturnBytes - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	13.69 μs	15.11 μs	1.10	0.12	False
ReadSingleSpanSequenceEmptyLoop - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	12.22 μs	13.22 μs	1.08	0.18	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_Reader*'

Payloads

Baseline
Compare

System.Text.Json.Tests.Perf_Reader.ReadReturnBytes(IsDataCompact: False, TestCase: DeepTree)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Reader.ReadSingleSpanSequenceEmptyLoop(IsDataCompact: False, TestCase: DeepTree)

ETL Files

Histogram

JIT Disasms

Docs

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