dotnet / dotnet/perf-autofiling-issues

[Perf] Linux/x64: 1 Improvement on 6/18/2026 9:53:01 PM +00:00

Open
#76,017 1 comment 0 reactions 0 assignees View on GitHub
aot-true arch-wasm arch-x64 branch-refs/heads/main compilationmode-wasm kind-micro Noise os-linux perf-improvement runkind-micro untriaged wasm-aot
Dominant language
No language data
Stars
10
Forks
8
PR merge metrics
PR metrics pending

Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a17debec450d73f9d84e68ca44f63b217f5db49f](https://github.com/dotnet/runtime/commit/a17debec450d73f9d84e68ca44f63b217f5db49f)
Compare | [482f9baca29117c07eb4f9ab5404990746986ce0](https://github.com/dotnet/runtime/commit/482f9baca29117c07eb4f9ab5404990746986ce0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a17debec450d73f9d84e68ca44f63b217f5db49f...482f9baca29117c07eb4f9ab5404990746986ce0)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Improvements in System.Runtime.Intrinsics.Tests.Perf_Vector128

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|

  • [ConvertUIntToFloatBenchmark - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 8.14 ns | 6.27 ns | 0.77 | 0.34 | False | | |

![graph]()
[Test Report]()

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Runtime.Intrinsics.Tests.Perf_Vector128*'
```

### System.Runtime.Intrinsics.Tests.Perf_Vector128.ConvertUIntToFloatBenchmark

#### 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)

Contributor guide

No contributing guide indexed for this repository

Research direction

Read the benchmark source at dotnet/performance/src/benchmarks/micro/libraries/System.Runtime.Intrinsics/Perf_Vector128.cs#L48-L49, then run the provided benchmarks_ci.py command for Perf_Vector128. Compare the linked baseline and test reports for ConvertUIntToFloatBenchmark; the payload does not define a specific code change or completion condition beyond investigating the reported improvement.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp, python, wasm
Domain
performance, testing
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
30/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.