[Perf] Windows/x64: 1 Improvement on 9/12/2026 9:05:57 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [0fd08c887c1317055025965cbe829b732fbe942d](https://github.com/dotnet/runtime/commit/0fd08c887c1317055025965cbe829b732fbe942d)
Compare | [b9678dcc0e7bac74a0d6b669b39d1007359b0016](https://github.com/dotnet/runtime/commit/b9678dcc0e7bac74a0d6b669b39d1007359b0016)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0fd08c887c1317055025965cbe829b732fbe942d...b9678dcc0e7bac74a0d6b669b39d1007359b0016)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in Microsoft.Extensions.DependencyInjection.ActivatorUtilitiesBenchmark

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

• [CreateInstance_5_WithAttrLast - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Microsoft.Extensions.DependencyInjection.ActivatorUtilitiesBenchmark*'
```

### Microsoft.Extensions.DependencyInjection.ActivatorUtilitiesBenchmark.CreateInstance_5_WithAttrLast

#### 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)

Start with src/benchmarks/micro/libraries/Microsoft.Extensions.DependencyInjection/ActivatorUtilitiesBenchmark.cs at CreateInstance_5_WithAttrLast and run the provided benchmarks_ci.py command. Compare the linked baseline and test results to determine whether the improvement needs investigation; the issue provides no specific code change or acceptance condition.

Written by the indexing model from the issue text.