[Perf] Windows/x64: 1 Improvement on 3/25/2026 4:20:06 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [6d3044db47fc5161841ba54317feed1122c132a9](https://github.com/dotnet/runtime/commit/6d3044db47fc5161841ba54317feed1122c132a9)
Compare | [91557f54f15bac8fbb5c7acf994910cbd6071991](https://github.com/dotnet/runtime/commit/91557f54f15bac8fbb5c7acf994910cbd6071991)
Diff | [Diff](https://github.com/dotnet/runtime/compare/6d3044db47fc5161841ba54317feed1122c132a9...91557f54f15bac8fbb5c7acf994910cbd6071991)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Formats.Tar.Tests.Perf_TarFile

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

• [CreateFromDirectory_Stream - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 102.19 μs | 93.75 μs | 0.92 | 0.23 | 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Formats.Tar.Tests.Perf_TarFile*'
```

### System.Formats.Tar.Tests.Perf_TarFile.CreateFromDirectory_Stream

#### 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)