[Perf] Windows/x64: 1 Regression on 7/7/2026 1:21:56 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [f2c93f81b35ddc48dd5ad22c759821277db6dfdf](https://github.com/dotnet/sdk/commit/f2c93f81b35ddc48dd5ad22c759821277db6dfdf)
Compare | [a67d575054ff3bcb905ea6699734d0ed8816aa2b](https://github.com/dotnet/sdk/commit/a67d575054ff3bcb905ea6699734d0ed8816aa2b)
Diff | [Diff](https://github.com/dotnet/sdk/compare/f2c93f81b35ddc48dd5ad22c759821277db6dfdf...a67d575054ff3bcb905ea6699734d0ed8816aa2b)
Configs | CompilationMode:tiered, RunKind:imagesharp

### Regressions in SixLabors.ImageSharp.Benchmarks.Codecs.Jpeg.DecodeJpeg

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

• [JpegProgressiveNonInterleaved420 - 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 'SixLabors.ImageSharp.Benchmarks.Codecs.Jpeg.DecodeJpeg*'
```

### SixLabors.ImageSharp.Benchmarks.Codecs.Jpeg.DecodeJpeg.JpegProgressiveNonInterleaved420

#### 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)

Start with src/benchmarks/real-world/ImageSharp/Codecs/Jpeg/DecodeJpeg.cs and reproduce the JpegProgressiveNonInterleaved420 result using the documented benchmarks_ci.py command. Compare the baseline and test commits, then use the profiling and benchmarking workflow documents to identify the regression and verify that the benchmark no longer shows the reported slowdown.

Written by the indexing model from the issue text.