[Perf] Windows/x64: 2 Improvements on 5/23/2026 12:54:53 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [0e2d6c5809808067e82ebb6b1ec1c4f1f99e057f](https://github.com/dotnet/runtime/commit/0e2d6c5809808067e82ebb6b1ec1c4f1f99e057f)
Compare | [2dce83ad91efd1efbf974eb636a18f9b0fcdcb17](https://github.com/dotnet/runtime/commit/2dce83ad91efd1efbf974eb636a18f9b0fcdcb17)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0e2d6c5809808067e82ebb6b1ec1c4f1f99e057f...2dce83ad91efd1efbf974eb636a18f9b0fcdcb17)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Collections.Tests.Perf_PriorityQueue<Int32, Int32>

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

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

| 1027.76 ns | 903.72 ns | 0.88 | 0.18 | 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.Tests.Perf_PriorityQueue*'
```

### System.Collections.Tests.Perf_PriorityQueue<Int32, Int32>.HeapSort(Size: 100)

#### 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 | [0e2d6c5809808067e82ebb6b1ec1c4f1f99e057f](https://github.com/dotnet/runtime/commit/0e2d6c5809808067e82ebb6b1ec1c4f1f99e057f)
Compare | [6d631290af2a27c1e021a090a44931df519a2db2](https://github.com/dotnet/runtime/commit/6d631290af2a27c1e021a090a44931df519a2db2)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0e2d6c5809808067e82ebb6b1ec1c4f1f99e057f...6d631290af2a27c1e021a090a44931df519a2db2)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Collections.Tests.Perf_BitArray

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

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

| 23.15 ns | 21.36 ns | 0.92 | 0.08 | 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.Tests.Perf_BitArray*'
```

### System.Collections.Tests.Perf_BitArray.BitArraySetLengthGrow(Size: 4)

#### 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)