dotnet / dotnet/perf-autofiling-issues

[Perf] Linux/x64: 8 Regressions on 3/6/2026 3:17:01 AM +00:00

Open
#69,816 1 comment 0 reactions 0 assignees View on GitHub
arch-wasm arch-x64 branch-refs/heads/main kind-micro os-linux perf-regression untriaged wasm-aot
Dominant language
No language data
Stars
10
Forks
8
PR metrics pending

Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [b9d3bb80ff804aa4578399759ad00120e78c4cfd](https://github.com/dotnet/runtime/commit/b9d3bb80ff804aa4578399759ad00120e78c4cfd)
Compare | [8b63bd26190fe970d9d0643f552a27a42cb8e9a2](https://github.com/dotnet/runtime/commit/8b63bd26190fe970d9d0643f552a27a42cb8e9a2)
Diff | [Diff](https://github.com/dotnet/runtime/compare/b9d3bb80ff804aa4578399759ad00120e78c4cfd...8b63bd26190fe970d9d0643f552a27a42cb8e9a2)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Regressions in System.ComponentModel.Tests.Perf_TypeDescriptorTests

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

  • [GetConverter - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 381.87 ns | 476.19 ns | 1.25 | 0.16 | False | | |

![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 'System.ComponentModel.Tests.Perf_TypeDescriptorTests*'
```

### System.ComponentModel.Tests.Perf_TypeDescriptorTests.GetConverter(typeToConvert: typeof(System.ComponentModel.Tests.DerivedClass))

#### 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 | [b9d3bb80ff804aa4578399759ad00120e78c4cfd](https://github.com/dotnet/runtime/commit/b9d3bb80ff804aa4578399759ad00120e78c4cfd)
Compare | [8b63bd26190fe970d9d0643f552a27a42cb8e9a2](https://github.com/dotnet/runtime/commit/8b63bd26190fe970d9d0643f552a27a42cb8e9a2)
Diff | [Diff](https://github.com/dotnet/runtime/compare/b9d3bb80ff804aa4578399759ad00120e78c4cfd...8b63bd26190fe970d9d0643f552a27a42cb8e9a2)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Regressions in System.Reflection.Attributes

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

  • [GetCustomAttributesMethodOverrideMiss - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 1.05 μs | 1.16 μs | 1.11 | 0.04 | False | | |
|
  • [GetCustomAttributesMethodBaseMissInherit - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 1.07 μs | 1.15 μs | 1.07 | 0.08 | False | | |
|
  • [IsDefinedMethodBaseMiss - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 343.65 ns | 479.24 ns | 1.39 | 0.11 | False | | |
|
  • [GetCustomAttributesClassMissInherit - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 1.82 μs | 2.07 μs | 1.13 | 0.05 | False | | |
|
  • [IsDefinedMethodBaseMissInherit - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 450.34 ns | 542.72 ns | 1.21 | 0.11 | False | | |
|
  • [GetCustomAttributesMethodBaseHit - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 1.07 μs | 1.18 μs | 1.11 | 0.02 | False | | |
|
  • [GetCustomAttributesMethodBaseMiss - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 992.18 ns | 1.09 μs | 1.10 | 0.08 | False | | |

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

### System.Reflection.Attributes.GetCustomAttributesMethodOverrideMiss

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Reflection.Attributes.GetCustomAttributesMethodBaseMissInherit

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Reflection.Attributes.IsDefinedMethodBaseMiss

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Reflection.Attributes.GetCustomAttributesClassMissInherit

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Reflection.Attributes.IsDefinedMethodBaseMissInherit

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Reflection.Attributes.GetCustomAttributesMethodBaseHit

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Reflection.Attributes.GetCustomAttributesMethodBaseMiss

#### 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)

Contributor guide

No contributing guide indexed for this repository

Assessment

This issue has not been assessed yet.

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.