[Perf] Windows/x86: 3 Regressions on 6/25/2026 10:47:13 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [b756a8d8a0e64905e16c81911bb09a8110bc3395](https://github.com/dotnet/sdk/commit/b756a8d8a0e64905e16c81911bb09a8110bc3395)
Compare | [1d4910780fe728cf5affade170fe51fc8f96f9fb](https://github.com/dotnet/sdk/commit/1d4910780fe728cf5affade170fe51fc8f96f9fb)
Diff | [Diff](https://github.com/dotnet/sdk/compare/b756a8d8a0e64905e16c81911bb09a8110bc3395...1d4910780fe728cf5affade170fe51fc8f96f9fb)
Configs | CompilationMode:tiered, RunKind:sdk_scenarios

### Regressions in SDK ASP.NET Core Web App Template Clean Build

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

• [NET Core Web App Template Clean Build - Process Time]()
• [ADX - Test Multi Config Graph]()

| 3633.29 ms | 3769.58 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 'SDK ASP.NET Core Web App Template Clean Build*'
```

### SDK ASP.NET Core Web App Template Clean Build

#### 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 | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [b756a8d8a0e64905e16c81911bb09a8110bc3395](https://github.com/dotnet/sdk/commit/b756a8d8a0e64905e16c81911bb09a8110bc3395)
Compare | [1d4910780fe728cf5affade170fe51fc8f96f9fb](https://github.com/dotnet/sdk/commit/1d4910780fe728cf5affade170fe51fc8f96f9fb)
Diff | [Diff](https://github.com/dotnet/sdk/compare/b756a8d8a0e64905e16c81911bb09a8110bc3395...1d4910780fe728cf5affade170fe51fc8f96f9fb)
Configs | CompilationMode:tiered, RunKind:sdk_scenarios

### Regressions in SDK xUnit Test Project Template Clean Build

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

• [SDK xUnit Test Project Template Clean Build - Process Time]()
• [ADX - Test Multi Config Graph]()

| 2549.77 ms | 2668.97 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 'SDK xUnit Test Project Template Clean Build*'
```

### SDK xUnit Test Project Template Clean Build

#### 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 | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [b756a8d8a0e64905e16c81911bb09a8110bc3395](https://github.com/dotnet/sdk/commit/b756a8d8a0e64905e16c81911bb09a8110bc3395)
Compare | [1d4910780fe728cf5affade170fe51fc8f96f9fb](https://github.com/dotnet/sdk/commit/1d4910780fe728cf5affade170fe51fc8f96f9fb)
Diff | [Diff](https://github.com/dotnet/sdk/compare/b756a8d8a0e64905e16c81911bb09a8110bc3395...1d4910780fe728cf5affade170fe51fc8f96f9fb)
Configs | CompilationMode:tiered, RunKind:sdk_scenarios

### Regressions in SDK ASP.NET Core Web App (Model-View-Controller) Template Clean Build

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

• [NET Core Web App - Process Time]()
• [ADX - Test Multi Config Graph]()

| 3621.14 ms | 3720.50 ms | 1.03 | 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 'SDK ASP.NET Core Web App (Model-View-Controller) Template Clean Build*'
```

### SDK ASP.NET Core Web App (Model-View-Controller) Template Clean Build

#### 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 listed benchmarking workflow and run each filter in the reproduction commands on Windows x86. Compare the reports for the baseline and compare commits across the three clean-build benchmarks; done means the regressions are explained and the affected benchmark results no longer show the reported slowdown.

Written by the indexing model from the issue text.