dotnet / dotnet/perf-autofiling-issues

[Perf] Windows/x64: 3 Improvements on 8/8/2026 9:56:47 AM +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 | [aedf05ae4b6c7f74f789e64a0a8d9d169414f04f](https://github.com/dotnet/sdk/commit/aedf05ae4b6c7f74f789e64a0a8d9d169414f04f)
Compare | [10d231dd86555cc17a757c800d821ad8e0f459d5](https://github.com/dotnet/sdk/commit/10d231dd86555cc17a757c800d821ad8e0f459d5)
Diff | [Diff](https://github.com/dotnet/sdk/compare/aedf05ae4b6c7f74f789e64a0a8d9d169414f04f...10d231dd86555cc17a757c800d821ad8e0f459d5)
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
-- | -- | -- | -- | -- | -- | -- | -- | --
|

  • [PngFilter2 - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 19.55 μs | 17.55 μs | 0.90 | 0.00 | True | | |
|
  • [PngFilter1 - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 18.99 μs | 17.09 μs | 0.90 | 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.PngFilter2

#### ETL Files

#### Histogram

#### JIT Disasms

### SixLabors.ImageSharp.Benchmarks.Codecs.DecodeFilteredPng.PngFilter1

#### 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 | [aedf05ae4b6c7f74f789e64a0a8d9d169414f04f](https://github.com/dotnet/sdk/commit/aedf05ae4b6c7f74f789e64a0a8d9d169414f04f)
Compare | [10d231dd86555cc17a757c800d821ad8e0f459d5](https://github.com/dotnet/sdk/commit/10d231dd86555cc17a757c800d821ad8e0f459d5)
Diff | [Diff](https://github.com/dotnet/sdk/compare/aedf05ae4b6c7f74f789e64a0a8d9d169414f04f...10d231dd86555cc17a757c800d821ad8e0f459d5)
Configs | CompilationMode:tiered, RunKind:imagesharp

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

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

  • [JpegBaselineInterleaved420 - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 7.92 ms | 6.60 ms | 0.83 | 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.Jpeg.DecodeJpeg*'
```

### SixLabors.ImageSharp.Benchmarks.Codecs.Jpeg.DecodeJpeg.JpegBaselineInterleaved420

#### 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 at src/benchmarks/real-world/ImageSharp/Codecs/DecodeFilteredPng.cs and Codecs/Jpeg/DecodeJpeg.cs, then run the provided benchmarks_ci.py commands. Compare the linked reports with the baseline to understand the reported improvements; the issue does not define a code change or acceptance criteria, so completion requires triage before implementation.

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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