[Perf] Windows/x64: 2 Regressions on 8/2/2026 9:09:03 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [77a60772669bc6602e26076c7ff0c3ebae137445](https://github.com/dotnet/sdk/commit/77a60772669bc6602e26076c7ff0c3ebae137445)
Compare | [5da2de22f7c6e2ebe7ed4c16c614b00183145d3c](https://github.com/dotnet/sdk/commit/5da2de22f7c6e2ebe7ed4c16c614b00183145d3c)
Diff | [Diff](https://github.com/dotnet/sdk/compare/77a60772669bc6602e26076c7ff0c3ebae137445...5da2de22f7c6e2ebe7ed4c16c614b00183145d3c)
Configs | CompilationMode:tiered, RunKind:bepuphysics

### Regressions in DemoBenchmarks.TwoBodyConstraintBenchmarks

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

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

| 68.61 μs | 80.14 μs | 1.17 | 0.00 | True | | |
|

• [Contact4 - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 282.99 μs | 313.74 μs | 1.11 | 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 'DemoBenchmarks.TwoBodyConstraintBenchmarks*'
```

### DemoBenchmarks.TwoBodyConstraintBenchmarks.BallSocket

#### ETL Files

#### Histogram

#### JIT Disasms

### DemoBenchmarks.TwoBodyConstraintBenchmarks.Contact4

#### 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 src/benchmarks/real-world/bepuphysics2/TwoBodyConstraintBenchmarks.cs at the BallSocket and Contact4 benchmarks, then run the provided benchmarks_ci.py command. Compare the listed baseline and test commits and inspect the linked benchmark reports; done means the reported performance regressions have been explained and addressed.

Written by the indexing model from the issue text.