[Perf] Windows/x86: 1 Regression on 5/19/2026 10:33:13 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [f41aba36d821378cab52741e15e4ab7446b7929e](https://github.com/dotnet/runtime/commit/f41aba36d821378cab52741e15e4ab7446b7929e)
Compare | [907596760ed73c4025395ee502ea7b3c1d285d9e](https://github.com/dotnet/runtime/commit/907596760ed73c4025395ee502ea7b3c1d285d9e)
Diff | [Diff](https://github.com/dotnet/runtime/compare/f41aba36d821378cab52741e15e4ab7446b7929e...907596760ed73c4025395ee502ea7b3c1d285d9e)
Configs | CompilationMode:tiered, RunKind:micro

### Regressions in System.Text.Encodings.Web.Tests.Perf_Encoders

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

• [EncodeUtf8 - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

![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.Text.Encodings.Web.Tests.Perf_Encoders*'
```

### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: UnsafeRelaxed,hello "there",16)

#### 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)