dotnet / dotnet/perf-autofiling-issues

[Perf] Windows/x64: 3 Improvements on 8/6/2026 5:06:51 PM +00:00

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arch-x64 branch-11.0 compilationmode-tiered kind-imagesharp Look Again os-windows perf-improvement runkind-imagesharp runtime-coreclr untriaged
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Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [322f5005d6589845edf1d69d55820a7d1ab9a09c](https://github.com/dotnet/sdk/commit/322f5005d6589845edf1d69d55820a7d1ab9a09c)
Compare | [8a6d49a3ce3bd6d5fcbac911e446b9cce5767ae4](https://github.com/dotnet/sdk/commit/8a6d49a3ce3bd6d5fcbac911e446b9cce5767ae4)
Diff | [Diff](https://github.com/dotnet/sdk/compare/322f5005d6589845edf1d69d55820a7d1ab9a09c...8a6d49a3ce3bd6d5fcbac911e446b9cce5767ae4)
Configs | CompilationMode:tiered, RunKind:imagesharp

### Improvements in SixLabors.ImageSharp.Benchmarks.Codecs.DecodeFilteredPng

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

  • [PngFilter0 - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 24.60 μs | 20.60 μs | 0.84 | 0.00 | True | | |
|
  • [PngFilter2 - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 20.43 μs | 18.03 μs | 0.88 | 0.00 | True | | |

![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.DecodeFilteredPng*'
```

### SixLabors.ImageSharp.Benchmarks.Codecs.DecodeFilteredPng.PngFilter0

#### ETL Files

#### Histogram

#### JIT Disasms

### SixLabors.ImageSharp.Benchmarks.Codecs.DecodeFilteredPng.PngFilter2

#### 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 | Windows 10.0.22631
Queue | ViperWindows
Baseline | [322f5005d6589845edf1d69d55820a7d1ab9a09c](https://github.com/dotnet/sdk/commit/322f5005d6589845edf1d69d55820a7d1ab9a09c)
Compare | [8a6d49a3ce3bd6d5fcbac911e446b9cce5767ae4](https://github.com/dotnet/sdk/commit/8a6d49a3ce3bd6d5fcbac911e446b9cce5767ae4)
Diff | [Diff](https://github.com/dotnet/sdk/compare/322f5005d6589845edf1d69d55820a7d1ab9a09c...8a6d49a3ce3bd6d5fcbac911e446b9cce5767ae4)
Configs | CompilationMode:tiered, RunKind:imagesharp

### Improvements in SixLabors.ImageSharp.Benchmarks.Codecs.DecodeGif

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

  • [GifImageSharp - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 408.75 μs | 309.75 μs | 0.76 | 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'SixLabors.ImageSharp.Benchmarks.Codecs.DecodeGif*'
```

### SixLabors.ImageSharp.Benchmarks.Codecs.DecodeGif.GifImageSharp(TestImage: "Gif/rings.gif")

#### 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)

Contributor guide

No contributing guide indexed for this repository

Research direction

Start with the benchmark sources linked as src/benchmarks/real-world/ImageSharp/Codecs/DecodeFilteredPng.cs and DecodeGif.cs, then run the provided benchmarks_ci.py commands. Compare the Windows/x64 results with the linked baseline and test reports; done means identifying a concrete, reproducible performance issue or documenting that no code change is warranted.

Written by the indexing model from the issue text.

Assessment

Domain
performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
30/100

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