[Perf] Windows/x64: 2 Regressions on 6/3/2026 8:49:02 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [1616fce88662817fb8b76911fb188b56650859a0](https://github.com/dotnet/sdk/commit/1616fce88662817fb8b76911fb188b56650859a0)
Compare | [953380f224e6f6ee72662fdee8b27900adbb29c2](https://github.com/dotnet/sdk/commit/953380f224e6f6ee72662fdee8b27900adbb29c2)
Diff | [Diff](https://github.com/dotnet/sdk/compare/1616fce88662817fb8b76911fb188b56650859a0...953380f224e6f6ee72662fdee8b27900adbb29c2)
Configs | CompilationMode:tiered, RunKind:scenarios

### Improvements in Startup - PaintDotNet - FDD Publish - Affinity 85

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

• [Startup - PaintDotNet - FDD Publish - Affinity 85 - Generic Startup]()
• [ADX - Test Multi Config Graph]()

| 993.98 ms | 888.97 ms | 0.89 | 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 'Startup - PaintDotNet - FDD Publish - Affinity 85*'
```

### Startup - PaintDotNet - FDD Publish - Affinity 85

#### 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 | [1616fce88662817fb8b76911fb188b56650859a0](https://github.com/dotnet/sdk/commit/1616fce88662817fb8b76911fb188b56650859a0)
Compare | [953380f224e6f6ee72662fdee8b27900adbb29c2](https://github.com/dotnet/sdk/commit/953380f224e6f6ee72662fdee8b27900adbb29c2)
Diff | [Diff](https://github.com/dotnet/sdk/compare/1616fce88662817fb8b76911fb188b56650859a0...953380f224e6f6ee72662fdee8b27900adbb29c2)
Configs | CompilationMode:tiered, RunKind:scenarios

### Regressions in Startup - Static Winforms Template - FDD Publish

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

• [Startup - Static Winforms Template - FDD Publish - Generic Startup]()
• [ADX - Test Multi Config Graph]()

| 91.20 ms | 96.00 ms | 1.05 | 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 'Startup - Static Winforms Template - FDD Publish*'
```

### Startup - Static Winforms Template - FDD Publish

#### 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 docs/benchmarking-workflow-dotnet-runtime.md and reproduce the two named benchmarks using the provided benchmarks_ci.py commands. Compare the baseline and compare commits and inspect the linked benchmark reports to identify the source of the startup regression. Done means the regression is explained and the relevant benchmark is rerun to verify the result.

Written by the indexing model from the issue text.