[Perf] Linux/x64: 4 Regressions on 5/24/2026 8:58:24 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [f99b26797b5d3d673f6c37ce3a19fe4117ecded2](https://github.com/dotnet/sdk/commit/f99b26797b5d3d673f6c37ce3a19fe4117ecded2)
Compare | [85ca690954a6f5e988d523dec249b57b84d1ad0d](https://github.com/dotnet/sdk/commit/85ca690954a6f5e988d523dec249b57b84d1ad0d)
Diff | [Diff](https://github.com/dotnet/sdk/compare/f99b26797b5d3d673f6c37ce3a19fe4117ecded2...85ca690954a6f5e988d523dec249b57b84d1ad0d)
Configs | CompilationMode:tiered, RunKind:bepuphysics

### Regressions in DemoBenchmarks.TwoBodyConstraintBenchmarks

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

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

| 43.70 μs | 50.71 μs | 1.16 | 0.00 | True | | |
|

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

| 101.83 μs | 113.54 μs | 1.12 | 0.00 | True | | |
|

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

| 82.91 μs | 92.07 μs | 1.11 | 0.00 | True | | |

![graph]()
![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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'DemoBenchmarks.TwoBodyConstraintBenchmarks*'
```

### DemoBenchmarks.TwoBodyConstraintBenchmarks.AngularServo

#### ETL Files

#### Histogram

#### JIT Disasms

### DemoBenchmarks.TwoBodyConstraintBenchmarks.PointOnLineServo

#### 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 | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [f99b26797b5d3d673f6c37ce3a19fe4117ecded2](https://github.com/dotnet/sdk/commit/f99b26797b5d3d673f6c37ce3a19fe4117ecded2)
Compare | [85ca690954a6f5e988d523dec249b57b84d1ad0d](https://github.com/dotnet/sdk/commit/85ca690954a6f5e988d523dec249b57b84d1ad0d)
Diff | [Diff](https://github.com/dotnet/sdk/compare/f99b26797b5d3d673f6c37ce3a19fe4117ecded2...85ca690954a6f5e988d523dec249b57b84d1ad0d)
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]()

| 2.24 ms | 3.20 ms | 1.43 | 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
python3 .\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)

Start with src/benchmarks/real-world/bepuphysics2/TwoBodyConstraintBenchmarks.cs and SweepBenchmarks.cs at the linked lines, then run benchmarks_ci.py with the provided filters on Ubuntu. Compare the baseline and test commits and use the linked test reports to investigate the four regressions. Done means the regression is explained and a verified fix or triage outcome is recorded.

Written by the indexing model from the issue text.