[Perf] Windows/x86: 2 Improvements on 6/12/2026 8:32:09 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [4c74f6ac0db2db2326798751e773f8c0c2a7aac9](https://github.com/dotnet/runtime/commit/4c74f6ac0db2db2326798751e773f8c0c2a7aac9)
Compare | [1f254ec3b14c88b71efc7324b3d001f1fb056ecb](https://github.com/dotnet/runtime/commit/1f254ec3b14c88b71efc7324b3d001f1fb056ecb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4c74f6ac0db2db2326798751e773f8c0c2a7aac9...1f254ec3b14c88b71efc7324b3d001f1fb056ecb)
Configs | CompilationMode:tiered, RunKind:micro

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

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

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

| 157.13 ns | 131.90 ns | 0.84 | 0.15 | 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_NumberTensorPrimitives*'
```

### System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives<Single>.SumOfMagnitudes(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)

---

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [4c74f6ac0db2db2326798751e773f8c0c2a7aac9](https://github.com/dotnet/runtime/commit/4c74f6ac0db2db2326798751e773f8c0c2a7aac9)
Compare | [1f254ec3b14c88b71efc7324b3d001f1fb056ecb](https://github.com/dotnet/runtime/commit/1f254ec3b14c88b71efc7324b3d001f1fb056ecb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4c74f6ac0db2db2326798751e773f8c0c2a7aac9...1f254ec3b14c88b71efc7324b3d001f1fb056ecb)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in Span.IndexerBench

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

• [CoveredIndex1 - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 721.85 ns | 566.16 ns | 0.78 | 0.01 | 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 'Span.IndexerBench*'
```

### Span.IndexerBench.CoveredIndex1(length: 1024)

#### 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)