[Perf] Linux/x64: 1 Regression on 7/31/2026 11:35:06 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [640b326fc81d94d410753b67c0f89b166d6666df](https://github.com/dotnet/runtime/commit/640b326fc81d94d410753b67c0f89b166d6666df)
Compare | [44687f2d763be239ff562b137360ab572f47066e](https://github.com/dotnet/runtime/commit/44687f2d763be239ff562b137360ab572f47066e)
Diff | [Diff](https://github.com/dotnet/runtime/compare/640b326fc81d94d410753b67c0f89b166d6666df...44687f2d763be239ff562b137360ab572f47066e)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Regressions in System.Collections.RemoveTrue<Int32>

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

• [Dictionary - 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.RemoveTrue*'
```

### System.Collections.RemoveTrue<Int32>.Dictionary(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 src/benchmarks/micro/libraries/System.Collections/Remove/RemoveTrue.cs at lines 54-66 and reproduce the reported benchmark using scripts/benchmarks_ci.py with the supplied filter. Compare the baseline and test commits, then use the profiling and benchmarking workflow documentation to isolate the regression; done means identifying and addressing the cause and confirming the benchmark no longer regresses.

Written by the indexing model from the issue text.