dotnet / dotnet/perf-autofiling-issues

[Perf] Linux/x64: 2 Improvements on 8/11/2026 11:24:58 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 | [6597edb0936de18005623b1a17adf29880df60e6](https://github.com/dotnet/runtime/commit/6597edb0936de18005623b1a17adf29880df60e6)
Compare | [19a2d977ed14ff9ab7417519f0257b3b296a82f4](https://github.com/dotnet/runtime/commit/19a2d977ed14ff9ab7417519f0257b3b296a82f4)
Diff | [Diff](https://github.com/dotnet/runtime/compare/6597edb0936de18005623b1a17adf29880df60e6...19a2d977ed14ff9ab7417519f0257b3b296a82f4)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Improvements in Microsoft.Extensions.Logging.ScopesOverheadBenchmark

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

  • [FilteredByLevel_InsideScope - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 2.75 μs | 1.66 μs | 0.60 | 0.25 | False | | |
|
  • [NotFiltered - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 3.67 μs | 3.13 μs | 0.85 | 0.24 | False | | |

![graph]()
![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 'Microsoft.Extensions.Logging.ScopesOverheadBenchmark*'
```

### Microsoft.Extensions.Logging.ScopesOverheadBenchmark.FilteredByLevel_InsideScope(HasISupportLoggingScopeLogger: True, CaptureScopes: False)

#### ETL Files

#### Histogram

#### JIT Disasms

### Microsoft.Extensions.Logging.ScopesOverheadBenchmark.NotFiltered(HasISupportLoggingScopeLogger: False, CaptureScopes: False)

#### 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 the linked ScopesOverheadBenchmark.cs sections at lines 29-42 and read the benchmarking workflow documentation. Run the provided benchmarks_ci.py command for the ScopesOverheadBenchmark filters, then compare the reported results with the baseline and test commits; done means determining the cause and appropriate handling of the two measured improvements.

Written by the indexing model from the issue text.

Assessment

Tech stack
python, wasm
Domain
performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
35/100

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