dotnet / dotnet/perf-autofiling-issues

[Perf] Windows/x64: 7 Improvements on 3/22/2026 7:11:08 AM +00:00

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arch-x64 branch-refs/heads/main kind-micro os-windows perf-improvement runtime-coreclr untriaged
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Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [f416dc4f97c836c6b91617e9c1857a752072b5e2](https://github.com/dotnet/runtime/commit/f416dc4f97c836c6b91617e9c1857a752072b5e2)
Compare | [f6d4ffd1dba9478b91d79371e77270d05e2d8a1d](https://github.com/dotnet/runtime/commit/f6d4ffd1dba9478b91d79371e77270d05e2d8a1d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/f416dc4f97c836c6b91617e9c1857a752072b5e2...f6d4ffd1dba9478b91d79371e77270d05e2d8a1d)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Numerics.Tests.Perf_VectorConvert

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

  • [Widen_byte - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 546.91 ns | 435.44 ns | 0.80 | 0.14 | False | | |
|
  • [Widen_int - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 547.81 ns | 429.98 ns | 0.78 | 0.08 | False | | |
|
  • [Widen_short - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 547.68 ns | 426.94 ns | 0.78 | 0.13 | False | | |
|
  • [Widen_ushort - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 547.87 ns | 434.97 ns | 0.79 | 0.09 | False | | |
|
  • [Widen_uint - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 547.63 ns | 438.59 ns | 0.80 | 0.06 | 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tests.Perf_VectorConvert*'
```

### System.Numerics.Tests.Perf_VectorConvert.Widen_byte

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorConvert.Widen_int

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorConvert.Widen_short

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorConvert.Widen_ushort

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorConvert.Widen_uint

#### 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 | Windows 10.0.22631
Queue | ViperWindows
Baseline | [df182629204a1f4cbe8a64c4ff4fa29dc8377991](https://github.com/dotnet/runtime/commit/df182629204a1f4cbe8a64c4ff4fa29dc8377991)
Compare | [f6d4ffd1dba9478b91d79371e77270d05e2d8a1d](https://github.com/dotnet/runtime/commit/f6d4ffd1dba9478b91d79371e77270d05e2d8a1d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/df182629204a1f4cbe8a64c4ff4fa29dc8377991...f6d4ffd1dba9478b91d79371e77270d05e2d8a1d)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Collections.ContainsTrue<Int32>

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

  • [HashSet - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 1.44 μs | 1.33 μs | 0.93 | 0.01 | 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsTrue*'
```

### System.Collections.ContainsTrue<Int32>.HashSet(Size: 512)

#### 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 | Windows 10.0.22631
Queue | ViperWindows
Baseline | [f416dc4f97c836c6b91617e9c1857a752072b5e2](https://github.com/dotnet/runtime/commit/f416dc4f97c836c6b91617e9c1857a752072b5e2)
Compare | [f6d4ffd1dba9478b91d79371e77270d05e2d8a1d](https://github.com/dotnet/runtime/commit/f6d4ffd1dba9478b91d79371e77270d05e2d8a1d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/f416dc4f97c836c6b91617e9c1857a752072b5e2...f6d4ffd1dba9478b91d79371e77270d05e2d8a1d)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Collections.ContainsTrueComparer<Int32>

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

  • [HashSet - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 3.36 μs | 1.58 μs | 0.47 | 0.01 | 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsTrueComparer*'
```

### System.Collections.ContainsTrueComparer<Int32>.HashSet(Size: 512)

#### 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)

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