[Perf] Linux/x64: 1 Improvement on 6/12/2026 2:03:56 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [e563422012f994091f0f1d52deeed8c6273edecb](https://github.com/dotnet/runtime/commit/e563422012f994091f0f1d52deeed8c6273edecb)
Compare | [4c74f6ac0db2db2326798751e773f8c0c2a7aac9](https://github.com/dotnet/runtime/commit/4c74f6ac0db2db2326798751e773f8c0c2a7aac9)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e563422012f994091f0f1d52deeed8c6273edecb...4c74f6ac0db2db2326798751e773f8c0c2a7aac9)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Improvements in System.Collections.ContainsKeyTrue<String, String>

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

• [SortedList - 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.Collections.ContainsKeyTrue*'
```

### System.Collections.ContainsKeyTrue<String, String>.SortedList(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 benchmark source at src/benchmarks/micro/libraries/System.Collections/Contains/ContainsKeyTrue.cs#L81-L90 and the referenced benchmarking workflow. Compare the listed baseline and test commits and inspect the linked benchmark and test report. The payload does not specify a code change or completion criterion.

Written by the indexing model from the issue text.