[Perf] Windows/x64: 8 Regressions on 7/5/2026 8:38:42 AM +00:00

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#75,655 opened on Jul 5, 2026 1 comment 0 reactions 0 assignees View on GitHub

arch-x64 branch-11.0 compilationmode-tiered kind-scenarios Look Again os-windows perf-regression runkind-scenarios untriaged

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Stars: 10
Forks: 8
PR merge metrics: PR metrics pending

Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [a9679a8de87742e170318ea39f7f0e2874bcd441](https://github.com/dotnet/sdk/commit/a9679a8de87742e170318ea39f7f0e2874bcd441)
Compare | [02385e26e452b21a97d8a5e694fe3ada7259a582](https://github.com/dotnet/sdk/commit/02385e26e452b21a97d8a5e694fe3ada7259a582)
Diff | [Diff](https://github.com/dotnet/sdk/compare/a9679a8de87742e170318ea39f7f0e2874bcd441...02385e26e452b21a97d8a5e694fe3ada7259a582)
Configs | CompilationMode:tiered, RunKind:scenarios

### Regressions in SOD - Static Console Template - SCD Publish

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

[SOD - Static Console Template - SCD Publish - SOD - Static Console Template - SCD Publish]()
[ADX - Test Multi Config Graph]()

| 78.97 MB | 80.79 MB | 1.02 | 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 'SOD - Static Console Template - SCD Publish*'
```

### SOD - Static Console Template - SCD 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

### Regressions in SOD - New VB Console Template - SCD Publish

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

[SOD - New VB Console Template - SCD Publish - SOD - New VB Console Template - SCD Publish]()
[ADX - Test Multi Config Graph]()

| 78.97 MB | 80.79 MB | 1.02 | 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 'SOD - New VB Console Template - SCD Publish*'
```

### SOD - New VB Console Template - SCD Publish

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

---

### Run Information

### Regressions in SOD - Static VB Console Template - SCD Publish

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

[SOD - Static VB Console Template - SCD Publish - SOD - Static VB Console Template - SCD Publish]()
[ADX - Test Multi Config Graph]()

| 78.97 MB | 80.79 MB | 1.02 | 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 'SOD - Static VB Console Template - SCD Publish*'
```

### SOD - Static VB Console Template - SCD Publish

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

---

### Run Information

### Regressions in SOD - Static F# Console Template - Build

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

[SOD - Static F# Console Template - Build - SOD - Static F# Console Template - Build]()
[ADX - Test Multi Config Graph]()

| 2.73 MB | 2.86 MB | 1.05 | 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 'SOD - Static F# Console Template - Build*'
```

### SOD - Static F# Console Template - Build

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

---

### Run Information

### 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]()

| 913.98 ms | 943.86 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 'Startup - PaintDotNet - FDD Publish - Affinity 85*'
```

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

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

---

### Run Information

### 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]()

| 83.12 ms | 84.87 ms | 1.02 | 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

---

### Run Information

### Regressions in SOD - Static F# Console Template - FDD Publish

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

[SOD - Static F# Console Template - FDD Publish - SOD - Static F# Console Template - FDD Publish]()
[ADX - Test Multi Config Graph]()

| 2.73 MB | 2.86 MB | 1.05 | 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 'SOD - Static F# Console Template - FDD Publish*'
```

### SOD - Static F# Console Template - FDD Publish

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

---

### Run Information

### Regressions in SOD - New Console Template - SCD Publish

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

[SOD - New Console Template - SCD Publish - SOD - New Console Template - SCD Publish]()
[ADX - Test Multi Config Graph]()

| 78.97 MB | 80.79 MB | 1.02 | 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 'SOD - New Console Template - SCD Publish*'
```

### SOD - New Console Template - SCD Publish

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

Contributor guide

No contributing guide indexed for this repository

Research direction

Start with the reported benchmark links and the dotnet/performance scripts/benchmarks_ci.py command, using the benchmarking workflow documentation for context. Reproduce the named Windows/x64 SCD publish and build scenarios, compare the listed baseline and test commits, and use the test reports to identify the regression cause; done means the regressions are explained and the affected benchmark results return to baseline.

Written by the indexing model from the issue text.

Assessment

Tech stack: fsharp, python
Domain: build-system, performance
Issue type: Bug
Difficulty: 5/5
Estimated time: Over a week
Activity status: Quiet
Clarity: Needs clarification
Newbie friendliness: 25/100

[Perf] Windows/x64: 8 Regressions on 7/5/2026 8:38:42 AM +00:00

Description

Contributor guide

Research direction

Assessment

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