[Perf] Linux/x64: 2 Regressions on 8/24/2026 9:07:51 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [64a29867c5c5c8e0babc9e31313cf3b6e50f0193](https://github.com/dotnet/sdk/commit/64a29867c5c5c8e0babc9e31313cf3b6e50f0193)
Compare | [c545c4e3f9e2ebc10c6b3e2626187e18569adcf2](https://github.com/dotnet/sdk/commit/c545c4e3f9e2ebc10c6b3e2626187e18569adcf2)
Diff | [Diff](https://github.com/dotnet/sdk/compare/64a29867c5c5c8e0babc9e31313cf3b6e50f0193...c545c4e3f9e2ebc10c6b3e2626187e18569adcf2)
Configs | CompilationMode:tiered, RunKind:imagesharp

### Regressions in SixLabors.ImageSharp.Benchmarks.Processing.Diffuse

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

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

| 7.43 ms | 8.40 ms | 1.13 | 0.00 | True | | |

![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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'SixLabors.ImageSharp.Benchmarks.Processing.Diffuse*'
```

### SixLabors.ImageSharp.Benchmarks.Processing.Diffuse.DoDither

#### 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 | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [64a29867c5c5c8e0babc9e31313cf3b6e50f0193](https://github.com/dotnet/sdk/commit/64a29867c5c5c8e0babc9e31313cf3b6e50f0193)
Compare | [c545c4e3f9e2ebc10c6b3e2626187e18569adcf2](https://github.com/dotnet/sdk/commit/c545c4e3f9e2ebc10c6b3e2626187e18569adcf2)
Diff | [Diff](https://github.com/dotnet/sdk/compare/64a29867c5c5c8e0babc9e31313cf3b6e50f0193...c545c4e3f9e2ebc10c6b3e2626187e18569adcf2)
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
-- | -- | -- | -- | -- | -- | -- | -- | --
|

• [JpegBaselineInterleaved444 - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 8.31 ms | 13.02 ms | 1.57 | 0.00 | True | | |

![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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'SixLabors.ImageSharp.Benchmarks.Codecs.Jpeg.DecodeJpeg*'
```

### SixLabors.ImageSharp.Benchmarks.Codecs.Jpeg.DecodeJpeg.JpegBaselineInterleaved444

#### 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 the benchmark sources at src/benchmarks/real-world/ImageSharp/Processing/Diffuse.cs and src/benchmarks/real-world/ImageSharp/Codecs/Jpeg/DecodeJpeg.cs, then compare the listed baseline and compare commits. Run the provided benchmarks_ci.py filters and review the linked test reports and benchmarking workflow documentation. Done means identifying and addressing the two reported regressions, with benchmark results confirming the change.

Written by the indexing model from the issue text.