[Perf] Windows/x86: 1 Regression on 2/18/2026 12:43:06 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [9268ae6c111dd586ff3514d988d17173c7899fa9](https://github.com/dotnet/runtime/commit/9268ae6c111dd586ff3514d988d17173c7899fa9)
Compare | [ad38fcdefa44d7110b5065d4c46d892b1a3341ea](https://github.com/dotnet/runtime/commit/ad38fcdefa44d7110b5065d4c46d892b1a3341ea)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9268ae6c111dd586ff3514d988d17173c7899fa9...ad38fcdefa44d7110b5065d4c46d892b1a3341ea)
Configs | CompilationMode:tiered, RunKind:micro

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

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

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

| 2.95 μs | 3.15 μs | 1.07 | 0.26 | 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.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives*'
```

### System.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives<Single>.Sigmoid(BufferLength: 3079)

#### 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)