[Perf] Windows/x86: 2 Improvements on 5/19/2026 12:42:43 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [b540c365da5e5f71a6c0389f5764f363bc59d4a2](https://github.com/dotnet/runtime/commit/b540c365da5e5f71a6c0389f5764f363bc59d4a2)
Compare | [286dc1501f7bc16b2b170ec68d70bb755476d4ea](https://github.com/dotnet/runtime/commit/286dc1501f7bc16b2b170ec68d70bb755476d4ea)
Diff | [Diff](https://github.com/dotnet/runtime/compare/b540c365da5e5f71a6c0389f5764f363bc59d4a2...286dc1501f7bc16b2b170ec68d70bb755476d4ea)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Threading.Tests.Perf_Interlocked

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

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

| 782.86 ns | 3.83 ns | 0.00 | 0.34 | 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.Threading.Tests.Perf_Interlocked*'
```

### System.Threading.Tests.Perf_Interlocked.CompareExchange_long

#### 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 | [b540c365da5e5f71a6c0389f5764f363bc59d4a2](https://github.com/dotnet/runtime/commit/b540c365da5e5f71a6c0389f5764f363bc59d4a2)
Compare | [286dc1501f7bc16b2b170ec68d70bb755476d4ea](https://github.com/dotnet/runtime/commit/286dc1501f7bc16b2b170ec68d70bb755476d4ea)
Diff | [Diff](https://github.com/dotnet/runtime/compare/b540c365da5e5f71a6c0389f5764f363bc59d4a2...286dc1501f7bc16b2b170ec68d70bb755476d4ea)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives<Single>

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

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

| 14.12 ns | 10.70 ns | 0.76 | 0.71 | 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.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives*'
```

### System.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives<Single>.Truncate(BufferLength: 128)

#### 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)