[Perf] Linux/x64: 4 Regressions on 7/21/2025 11:54:44 PM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	ViperUbuntu
Baseline	0d7b88c85c3a78bc5fde5d281e0dff54337dff52
Compare	0b2f272204ea0cb7d22d329a684c06cec412f736
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Regressions in MicroBenchmarks.Serializers.Json_FromStream<LoginViewModel>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
SystemTextJson_Reflection_ - Duration of single invocation ADX - Test Multi Config Graph	1.77 μs	2.33 μs	1.32	0.12	False
SystemTextJson_SourceGen_ - Duration of single invocation ADX - Test Multi Config Graph	1.37 μs	1.94 μs	1.42	0.06	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 'MicroBenchmarks.Serializers.Json_FromStream<LoginViewModel>*'

Details

MicroBenchmarks.Serializers.Json_FromStream<LoginViewModel>.SystemTextJson_Reflection_

ETL Files

Histogram

JIT Disasms

MicroBenchmarks.Serializers.Json_FromStream<LoginViewModel>.SystemTextJson_SourceGen_

ETL Files

Histogram

JIT Disasms

Docs

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

---

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	ViperUbuntu
Baseline	0d7b88c85c3a78bc5fde5d281e0dff54337dff52
Compare	0b2f272204ea0cb7d22d329a684c06cec412f736
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Regressions in MicroBenchmarks.Serializers.Json_FromStream<Location>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
SystemTextJson_SourceGen_ - Duration of single invocation ADX - Test Multi Config Graph	2.74 μs	3.43 μs	1.25	0.11	False
SystemTextJson_Reflection_ - Duration of single invocation ADX - Test Multi Config Graph	3.83 μs	4.76 μs	1.24	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 'MicroBenchmarks.Serializers.Json_FromStream<Location>*'

Details

MicroBenchmarks.Serializers.Json_FromStream<Location>.SystemTextJson_SourceGen_

ETL Files

Histogram

JIT Disasms

MicroBenchmarks.Serializers.Json_FromStream<Location>.SystemTextJson_Reflection_

ETL Files

Histogram

JIT Disasms

Docs

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

[lewing]

regressions from dotnet/runtime#116947 cc @BrennanConroy

[lewing]

runtime issue dotnet/runtime#118173