[Perf] Windows/x64: 7 Regressions on 7/15/2026 9:13:33 AM +00:00

Open

#76,295 opened on Jul 15, 2026 1 comment 0 reactions 0 assignees View on GitHub

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

Dominant language: No language data
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 | [9b4d3b99c89873c850b8ec1f7fd4b66d9eb6e3e2](https://github.com/dotnet/sdk/commit/9b4d3b99c89873c850b8ec1f7fd4b66d9eb6e3e2)
Compare | [ecc427bc7d7b4ee32b943f71196ab377f67c1105](https://github.com/dotnet/sdk/commit/ecc427bc7d7b4ee32b943f71196ab377f67c1105)
Diff | [Diff](https://github.com/dotnet/sdk/compare/9b4d3b99c89873c850b8ec1f7fd4b66d9eb6e3e2...ecc427bc7d7b4ee32b943f71196ab377f67c1105)
Configs | CompilationMode:tiered, RunKind:bepuphysics

### Regressions in DemoBenchmarks.TwoBodyConstraintBenchmarks

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

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

| 168.58 μs | 217.90 μs | 1.29 | 0.00 | True | | |
|

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

| 41.46 μs | 49.23 μs | 1.19 | 0.00 | True | | |
|

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

| 53.97 μs | 60.92 μs | 1.13 | 0.00 | True | | |
|

[Contact4Nonconvex - Duration of single invocation]()
📝 - [Benchmark Source]()
[ADX - Test Multi Config Graph]()

| 481.67 μs | 541.34 μs | 1.12 | 0.00 | True | | |

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

### DemoBenchmarks.TwoBodyConstraintBenchmarks.Weld

#### ETL Files

#### Histogram

#### JIT Disasms

### DemoBenchmarks.TwoBodyConstraintBenchmarks.AngularServo

#### ETL Files

#### Histogram

#### JIT Disasms

### DemoBenchmarks.TwoBodyConstraintBenchmarks.SwingLimit

#### ETL Files

#### Histogram

#### JIT Disasms

### DemoBenchmarks.TwoBodyConstraintBenchmarks.Contact4Nonconvex

#### 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 DemoBenchmarks.OneBodyConstraintBenchmarks

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

[Contact4OneBody - Duration of single invocation]()
📝 - [Benchmark Source]()
[ADX - Test Multi Config Graph]()

| 165.05 μs | 186.58 μs | 1.13 | 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 'DemoBenchmarks.OneBodyConstraintBenchmarks*'
```

### DemoBenchmarks.OneBodyConstraintBenchmarks.Contact4OneBody

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

---

### Run Information

### 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]()

| 23.35 μs | 26.49 μs | 1.13 | 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 'DemoBenchmarks.GroupedCollisionTesterBenchmarks*'
```

### DemoBenchmarks.GroupedCollisionTesterBenchmarks.CheapCollisionBenchmarks

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

---

### Run Information

### Regressions in DemoBenchmarks.GatherScatterBenchmarks

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

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

| 22.88 μs | 26.37 μs | 1.15 | 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 'DemoBenchmarks.GatherScatterBenchmarks*'
```

### DemoBenchmarks.GatherScatterBenchmarks.ScatterState

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

Contributor guide

No contributing guide indexed for this repository

Research direction

Start with the listed benchmark sources, src/benchmarks/real-world/bepuphysics2/TwoBodyConstraintBenchmarks.cs and OneBodyConstraintBenchmarks.cs, then run the provided benchmarks_ci.py commands on Windows x64. Compare the reported results with the baseline and investigate the linked test reports and commit diff; done means identifying and addressing the cause of the listed regressions.

Written by the indexing model from the issue text.

Assessment

Tech stack: csharp, python
Domain: performance, testing
Issue type: Bug
Difficulty: 4/5
Estimated time: 3-5 days
Activity status: Quiet
Clarity: Needs clarification
Newbie friendliness: 35/100

[Perf] Windows/x64: 7 Regressions on 7/15/2026 9:13:33 AM +00:00

Description

Contributor guide

Research direction

Assessment

Get new issues in your inbox