[Perf] Windows/x86: 3 Improvements on 3/5/2026 10:46:25 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [e722f654430bb3ebff09be6c9b582ca66898a634](https://github.com/dotnet/runtime/commit/e722f654430bb3ebff09be6c9b582ca66898a634)
Compare | [b85f10962df5d097ca466ec0ed83664835671e42](https://github.com/dotnet/runtime/commit/b85f10962df5d097ca466ec0ed83664835671e42)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e722f654430bb3ebff09be6c9b582ca66898a634...b85f10962df5d097ca466ec0ed83664835671e42)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.IO.Pipes.Tests.Perf_NamedPipeStream

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

• [ReadWriteAsync - Duration of single invocation]()
• [ADX - Test Multi Config Graph]()

| 178.17 μs | 117.42 μs | 0.66 | 0.63 | False | | |

[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.IO.Pipes.Tests.Perf_NamedPipeStream*'
```

### System.IO.Pipes.Tests.Perf_NamedPipeStream.ReadWriteAsync(size: 1000000, Options: Asynchronous)

#### 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)

---

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [e722f654430bb3ebff09be6c9b582ca66898a634](https://github.com/dotnet/runtime/commit/e722f654430bb3ebff09be6c9b582ca66898a634)
Compare | [b85f10962df5d097ca466ec0ed83664835671e42](https://github.com/dotnet/runtime/commit/b85f10962df5d097ca466ec0ed83664835671e42)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e722f654430bb3ebff09be6c9b582ca66898a634...b85f10962df5d097ca466ec0ed83664835671e42)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Buffers.Tests.RentReturnArrayPoolTests<Object>

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

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

| 935.03 ns | 391.34 ns | 0.42 | 0.40 | False | | |
|

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

| 19.86 ns | 13.38 ns | 0.67 | 0.05 | False | | |

[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.Buffers.Tests.RentReturnArrayPoolTests*'
```

### System.Buffers.Tests.RentReturnArrayPoolTests<Object>.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: True, UseSharedPool: False)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Buffers.Tests.RentReturnArrayPoolTests<Object>.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: True)

#### 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)