dotnet / dotnet/perf-autofiling-issues

[Perf] Linux/x64: 13 Regressions on 4/27/2026 4:59:19 PM +00:00

Open
#72,183 1 comment 0 reactions 0 assignees View on GitHub
arch-wasm arch-x64 branch-refs/heads/main compilationmode-wasm kind-micro os-linux perf-regression runkind-micro runtimetype-coreclr untriaged
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 | [db9e39fe6f0d64e07c6b975d834fac18f2a41e27](https://github.com/dotnet/runtime/commit/db9e39fe6f0d64e07c6b975d834fac18f2a41e27)
Compare | [bbccf5ea9ae9a2667f138a67d117eddba9d99e9c](https://github.com/dotnet/runtime/commit/bbccf5ea9ae9a2667f138a67d117eddba9d99e9c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/db9e39fe6f0d64e07c6b975d834fac18f2a41e27...bbccf5ea9ae9a2667f138a67d117eddba9d99e9c)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Regressions in System.Numerics.Tests.Perf_VectorOf<Byte>

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

  • [LessThanOrEqualAnyBenchmark - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 537.68 ns | 700.14 ns | 1.30 | 0.39 | False | | |
|
  • [SubtractBenchmark - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 6.13 μs | 7.18 μs | 1.17 | 0.35 | False | | |
|
  • [MinBenchmark - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 6.80 μs | 7.71 μs | 1.13 | 0.35 | False | | |
|
  • [MultiplyOperatorBenchmark - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 6.32 μs | 7.14 μs | 1.13 | 0.34 | False | | |
|
  • [OnesComplementBenchmark - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 1.41 μs | 1.49 μs | 1.06 | 0.39 | False | | |

![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.Numerics.Tests.Perf_VectorOf*'
```

### System.Numerics.Tests.Perf_VectorOf<Byte>.LessThanOrEqualAnyBenchmark

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorOf<Byte>.SubtractBenchmark

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorOf<Byte>.MinBenchmark

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorOf<Byte>.MultiplyOperatorBenchmark

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorOf<Byte>.OnesComplementBenchmark

#### 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 | [db9e39fe6f0d64e07c6b975d834fac18f2a41e27](https://github.com/dotnet/runtime/commit/db9e39fe6f0d64e07c6b975d834fac18f2a41e27)
Compare | [bbccf5ea9ae9a2667f138a67d117eddba9d99e9c](https://github.com/dotnet/runtime/commit/bbccf5ea9ae9a2667f138a67d117eddba9d99e9c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/db9e39fe6f0d64e07c6b975d834fac18f2a41e27...bbccf5ea9ae9a2667f138a67d117eddba9d99e9c)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Regressions in System.Numerics.Tests.Perf_VectorOf<Int16>

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

  • [EqualsBenchmark - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 588.83 ns | 701.51 ns | 1.19 | 0.29 | False | | |
|
  • [NegateBenchmark - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 3.46 μs | 3.80 μs | 1.10 | 0.29 | False | | |
|
  • [DivideBenchmark - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 3.35 μs | 3.64 μs | 1.08 | 0.38 | False | | |

![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.Numerics.Tests.Perf_VectorOf*'
```

### System.Numerics.Tests.Perf_VectorOf<Int16>.EqualsBenchmark

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorOf<Int16>.NegateBenchmark

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorOf<Int16>.DivideBenchmark

#### 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 | [db9e39fe6f0d64e07c6b975d834fac18f2a41e27](https://github.com/dotnet/runtime/commit/db9e39fe6f0d64e07c6b975d834fac18f2a41e27)
Compare | [bbccf5ea9ae9a2667f138a67d117eddba9d99e9c](https://github.com/dotnet/runtime/commit/bbccf5ea9ae9a2667f138a67d117eddba9d99e9c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/db9e39fe6f0d64e07c6b975d834fac18f2a41e27...bbccf5ea9ae9a2667f138a67d117eddba9d99e9c)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Regressions in System.Tests.Perf_Boolean

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

  • [TryParse - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 740.02 ns | 924.07 ns | 1.25 | 0.30 | False | | |
|
  • [TryParse - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 1.37 μs | 1.54 μs | 1.12 | 0.32 | False | | |

![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.Tests.Perf_Boolean*'
```

### System.Tests.Perf_Boolean.TryParse(value: "0")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Boolean.TryParse(value: "false")

#### 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 | [db9e39fe6f0d64e07c6b975d834fac18f2a41e27](https://github.com/dotnet/runtime/commit/db9e39fe6f0d64e07c6b975d834fac18f2a41e27)
Compare | [bbccf5ea9ae9a2667f138a67d117eddba9d99e9c](https://github.com/dotnet/runtime/commit/bbccf5ea9ae9a2667f138a67d117eddba9d99e9c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/db9e39fe6f0d64e07c6b975d834fac18f2a41e27...bbccf5ea9ae9a2667f138a67d117eddba9d99e9c)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Regressions in System.Memory.MemoryMarshal<Int32>

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

  • [GetReference - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 94.55 ns | 101.71 ns | 1.08 | 0.41 | False | | |
|
  • [Read - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 172.12 ns | 183.08 ns | 1.06 | 0.40 | False | | |

![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.Memory.MemoryMarshal*'
```

### System.Memory.MemoryMarshal<Int32>.GetReference

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.MemoryMarshal<Int32>.Read

#### 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 | [db9e39fe6f0d64e07c6b975d834fac18f2a41e27](https://github.com/dotnet/runtime/commit/db9e39fe6f0d64e07c6b975d834fac18f2a41e27)
Compare | [bbccf5ea9ae9a2667f138a67d117eddba9d99e9c](https://github.com/dotnet/runtime/commit/bbccf5ea9ae9a2667f138a67d117eddba9d99e9c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/db9e39fe6f0d64e07c6b975d834fac18f2a41e27...bbccf5ea9ae9a2667f138a67d117eddba9d99e9c)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Regressions in System.Numerics.Tests.Perf_Vector3

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

  • [EqualityOperatorBenchmark - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 1.88 μs | 2.01 μs | 1.07 | 0.34 | 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.Numerics.Tests.Perf_Vector3*'
```

### System.Numerics.Tests.Perf_Vector3.EqualityOperatorBenchmark

#### 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.