[Perf] Windows/x64: 4 Regressions on 4/16/2026 9:50:37 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [0cf6b19ed68d2d52e097e6af6d6046b4eeefefe2](https://github.com/dotnet/sdk/commit/0cf6b19ed68d2d52e097e6af6d6046b4eeefefe2)
Compare | [b61c1c319cf700db4bd4c7bbe9b2156c5383dd18](https://github.com/dotnet/sdk/commit/b61c1c319cf700db4bd4c7bbe9b2156c5383dd18)
Diff | [Diff](https://github.com/dotnet/sdk/compare/0cf6b19ed68d2d52e097e6af6d6046b4eeefefe2...b61c1c319cf700db4bd4c7bbe9b2156c5383dd18)
Configs | CompilationMode:tiered, RunKind:bepuphysics

### Regressions in DemoBenchmarks.TwoBodyConstraintBenchmarks

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

• [AngularSwivelHinge - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 40.60 μs | 50.19 μs | 1.24 | 0.00 | True | | |
|

• [DistanceServo - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 85.72 μs | 104.88 μs | 1.22 | 0.00 | True | | |

[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 'DemoBenchmarks.TwoBodyConstraintBenchmarks*'
```

### DemoBenchmarks.TwoBodyConstraintBenchmarks.AngularSwivelHinge

#### ETL Files

#### Histogram

#### JIT Disasms

### DemoBenchmarks.TwoBodyConstraintBenchmarks.DistanceServo

#### 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 | [0cf6b19ed68d2d52e097e6af6d6046b4eeefefe2](https://github.com/dotnet/sdk/commit/0cf6b19ed68d2d52e097e6af6d6046b4eeefefe2)
Compare | [b61c1c319cf700db4bd4c7bbe9b2156c5383dd18](https://github.com/dotnet/sdk/commit/b61c1c319cf700db4bd4c7bbe9b2156c5383dd18)
Diff | [Diff](https://github.com/dotnet/sdk/compare/0cf6b19ed68d2d52e097e6af6d6046b4eeefefe2...b61c1c319cf700db4bd4c7bbe9b2156c5383dd18)
Configs | CompilationMode:tiered, RunKind:bepuphysics

### Regressions in DemoBenchmarks.SweepBenchmarks

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

• [BigCompoundBigCompound - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 1.52 ms | 2.07 ms | 1.36 | 0.00 | True | | |

[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 'DemoBenchmarks.SweepBenchmarks*'
```

### DemoBenchmarks.SweepBenchmarks.BigCompoundBigCompound

#### 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 | [0cf6b19ed68d2d52e097e6af6d6046b4eeefefe2](https://github.com/dotnet/sdk/commit/0cf6b19ed68d2d52e097e6af6d6046b4eeefefe2)
Compare | [b61c1c319cf700db4bd4c7bbe9b2156c5383dd18](https://github.com/dotnet/sdk/commit/b61c1c319cf700db4bd4c7bbe9b2156c5383dd18)
Diff | [Diff](https://github.com/dotnet/sdk/compare/0cf6b19ed68d2d52e097e6af6d6046b4eeefefe2...b61c1c319cf700db4bd4c7bbe9b2156c5383dd18)
Configs | CompilationMode:tiered, RunKind:bepuphysics

### Regressions in DemoBenchmarks.GroupedCollisionTesterBenchmarks

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

• [CheapCollisionBenchmarks - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 21.91 μs | 24.67 μs | 1.13 | 0.00 | True | | |

[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 'DemoBenchmarks.GroupedCollisionTesterBenchmarks*'
```

### DemoBenchmarks.GroupedCollisionTesterBenchmarks.CheapCollisionBenchmarks

#### 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 benchmark sources in src/benchmarks/real-world/bepuphysics2/TwoBodyConstraintBenchmarks.cs, SweepBenchmarks.cs, and GroupedCollisionTesterBenchmarks.cs, then run the listed benchmarks_ci.py commands. Compare the baseline and test reports, and use the profiling workflow if needed. Done means the reported Windows/x64 benchmark regressions are explained and no longer reproduce.

Written by the indexing model from the issue text.