[Perf] Linux/x64: 4 Regressions on 2/1/2026 9:30:39 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [72e782541cab0694c5cc018e4bc784245e22e6a1](https://github.com/dotnet/sdk/commit/72e782541cab0694c5cc018e4bc784245e22e6a1)
Compare | [1e311fe894a29d7e6b026f4dbefa2de2754eb2b3](https://github.com/dotnet/sdk/commit/1e311fe894a29d7e6b026f4dbefa2de2754eb2b3)
Diff | [Diff](https://github.com/dotnet/sdk/compare/72e782541cab0694c5cc018e4bc784245e22e6a1...1e311fe894a29d7e6b026f4dbefa2de2754eb2b3)
Configs | CompilationMode:tiered, RunKind:bepuphysics

### Regressions in DemoBenchmarks.SweepBenchmarks

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

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

| 42.04 μs | 60.92 μs | 1.45 | 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.BoxCompound

#### 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 | [72e782541cab0694c5cc018e4bc784245e22e6a1](https://github.com/dotnet/sdk/commit/72e782541cab0694c5cc018e4bc784245e22e6a1)
Compare | [1e311fe894a29d7e6b026f4dbefa2de2754eb2b3](https://github.com/dotnet/sdk/commit/1e311fe894a29d7e6b026f4dbefa2de2754eb2b3)
Diff | [Diff](https://github.com/dotnet/sdk/compare/72e782541cab0694c5cc018e4bc784245e22e6a1...1e311fe894a29d7e6b026f4dbefa2de2754eb2b3)
Configs | CompilationMode:tiered, RunKind:bepuphysics

### Regressions in DemoBenchmarks.GatherScatterBenchmarks

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

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

| 22.67 μs | 25.41 μs | 1.12 | 0.00 | True | | |
|

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

| 20.09 μs | 23.41 μs | 1.17 | 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'DemoBenchmarks.GatherScatterBenchmarks*'
```

### DemoBenchmarks.GatherScatterBenchmarks.GatherState

#### ETL Files

#### Histogram

#### JIT Disasms

### DemoBenchmarks.GatherScatterBenchmarks.ScatterState

#### 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 | [72e782541cab0694c5cc018e4bc784245e22e6a1](https://github.com/dotnet/sdk/commit/72e782541cab0694c5cc018e4bc784245e22e6a1)
Compare | [1e311fe894a29d7e6b026f4dbefa2de2754eb2b3](https://github.com/dotnet/sdk/commit/1e311fe894a29d7e6b026f4dbefa2de2754eb2b3)
Diff | [Diff](https://github.com/dotnet/sdk/compare/72e782541cab0694c5cc018e4bc784245e22e6a1...1e311fe894a29d7e6b026f4dbefa2de2754eb2b3)
Configs | CompilationMode:tiered, RunKind:bepuphysics

### Regressions in DemoBenchmarks.FourBodyConstraintBenchmarks

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

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

| 78.52 μs | 95.43 μs | 1.22 | 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.FourBodyConstraintBenchmarks*'
```

### DemoBenchmarks.FourBodyConstraintBenchmarks.VolumeConstraint

#### 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)