[Perf] Linux/x64: 2 Regressions on 4/10/2026 12:31:32 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [62b476b6958dcb62b034b3295e34a37c97ee0880](https://github.com/dotnet/runtime/commit/62b476b6958dcb62b034b3295e34a37c97ee0880)
Compare | [ce3e7165836e64efbfe6f7a874991715b40e28bf](https://github.com/dotnet/runtime/commit/ce3e7165836e64efbfe6f7a874991715b40e28bf)
Diff | [Diff](https://github.com/dotnet/runtime/compare/62b476b6958dcb62b034b3295e34a37c97ee0880...ce3e7165836e64efbfe6f7a874991715b40e28bf)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Regressions in System.Collections.Tests.Perf_PriorityQueue<String, String>

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

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

| 78.43 μs | 98.71 μs | 1.26 | 0.43 | False | | |
|

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

| 413.84 μs | 437.67 μs | 1.06 | 0.28 | False | | |

[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.Collections.Tests.Perf_PriorityQueue*'
```

### System.Collections.Tests.Perf_PriorityQueue<String, String>.K_Max_Elements(Size: 10)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.Tests.Perf_PriorityQueue<String, String>.Dequeue_And_Enqueue(Size: 10)

#### 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)