dotnet / dotnet/perf-autofiling-issues

[Perf] Linux/x64: 1 Improvement on 7/19/2026 5:54:44 PM +00:00

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arch-wasm arch-x64 branch-refs/heads/main compilationmode-wasm kind-micro Look Again os-linux perf-improvement runkind-micro runtimetype-coreclr untriaged
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Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [2515f972d25ec6ab5868f696273bd02a6275e273](https://github.com/dotnet/runtime/commit/2515f972d25ec6ab5868f696273bd02a6275e273)
Compare | [f43516f45fff5920eabd11753bd5f1803cfacd0c](https://github.com/dotnet/runtime/commit/f43516f45fff5920eabd11753bd5f1803cfacd0c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2515f972d25ec6ab5868f696273bd02a6275e273...f43516f45fff5920eabd11753bd5f1803cfacd0c)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Improvements in LinqBenchmarks

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

  • [Order00LinqMethodX - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 4.18 secs | 3.74 secs | 0.89 | 0.24 | 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 'LinqBenchmarks*'
```

### LinqBenchmarks.Order00LinqMethodX

#### 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

Start with src/benchmarks/micro/runtime/Linq/Linq.cs at lines 339-352 and run the provided benchmarks_ci.py command with the LinqBenchmarks filter. Compare the reported baseline and test results, then determine whether the improvement is reproducible and what concrete follow-up is warranted.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp, python, wasm
Domain
performance
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

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