[Perf] Linux/x64: 1 Regression on 8/21/2026 4:33:08 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [1fb02ff55d2046e7e46b89467235f92e39d2099f](https://github.com/dotnet/runtime/commit/1fb02ff55d2046e7e46b89467235f92e39d2099f)
Compare | [f9b6d584afa7ac1f655c5e9d991b6f9eea1052d1](https://github.com/dotnet/runtime/commit/f9b6d584afa7ac1f655c5e9d991b6f9eea1052d1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1fb02ff55d2046e7e46b89467235f92e39d2099f...f9b6d584afa7ac1f655c5e9d991b6f9eea1052d1)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Regressions in System.Memory.Memory<Char>

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

• [ToArray - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config 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.Memory*'
```

### System.Memory.Memory<Char>.ToArray(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)

Start with the System.Memory.Memory.ToArray(Size: 512) benchmark in performance/src/benchmarks/micro/libraries/System.Memory/Memory.cs and compare the linked baseline and test commits. Run the provided benchmarks_ci.py command and inspect the linked test report or profiling workflow to identify the regression. Done means the benchmark no longer shows the reported regression on Linux/x64 WebAssembly AOT.

Written by the indexing model from the issue text.