[Perf] Windows/x64: 2 Regressions on 7/3/2026 8:46:41 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [2dc99e9fbda76d5f7d01a932367e709dda184973](https://github.com/dotnet/sdk/commit/2dc99e9fbda76d5f7d01a932367e709dda184973)
Compare | [bcaa8d44d57494224d443dba7c1dfed381ad5528](https://github.com/dotnet/sdk/commit/bcaa8d44d57494224d443dba7c1dfed381ad5528)
Diff | [Diff](https://github.com/dotnet/sdk/compare/2dc99e9fbda76d5f7d01a932367e709dda184973...bcaa8d44d57494224d443dba7c1dfed381ad5528)
Configs | CompilationMode:tiered, RunKind:scenarios

### Regressions in Startup - PaintDotNet - FDD Publish

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

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

| 1040.49 ms | 1093.88 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 - PaintDotNet - FDD Publish*'
```

### Startup - PaintDotNet - 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)

---

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [2dc99e9fbda76d5f7d01a932367e709dda184973](https://github.com/dotnet/sdk/commit/2dc99e9fbda76d5f7d01a932367e709dda184973)
Compare | [bcaa8d44d57494224d443dba7c1dfed381ad5528](https://github.com/dotnet/sdk/commit/bcaa8d44d57494224d443dba7c1dfed381ad5528)
Diff | [Diff](https://github.com/dotnet/sdk/compare/2dc99e9fbda76d5f7d01a932367e709dda184973...bcaa8d44d57494224d443dba7c1dfed381ad5528)
Configs | CompilationMode:tiered, RunKind:scenarios

### Regressions 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]()

| 943.74 ms | 980.92 ms | 1.04 | 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)

Start by reading docs/benchmarking-workflow-dotnet-runtime.md and running the two benchmarks with the provided performance/scripts/benchmarks_ci.py filters. Compare the baseline and test reports for both Generic Startup cases; done means the cause is identified and the reported regressions are no longer present on rerun.

Written by the indexing model from the issue text.