[Perf] Linux/x64: 1 Improvement on 6/18/2026 4:50:10 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a065c06c0c5f5647d8e312fc70dec3f5ca77b830](https://github.com/dotnet/sdk/commit/a065c06c0c5f5647d8e312fc70dec3f5ca77b830)
Compare | [2d748ca0a1e035e7b7c5bfb74e944b26a8df654b](https://github.com/dotnet/sdk/commit/2d748ca0a1e035e7b7c5bfb74e944b26a8df654b)
Diff | [Diff](https://github.com/dotnet/sdk/compare/a065c06c0c5f5647d8e312fc70dec3f5ca77b830...2d748ca0a1e035e7b7c5bfb74e944b26a8df654b)
Configs | CompilationMode:tiered, RunKind:fsharpmicro

### Improvements in MicroBenchmarks.FSharp.Collections+CollectionsBenchmark

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

• [ListRemoveManyAtBeginning - Duration of single invocation]()
• [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 'MicroBenchmarks.FSharp.Collections+CollectionsBenchmark*'
```

### MicroBenchmarks.FSharp.Collections+CollectionsBenchmark.ListRemoveManyAtBeginning(Length: 10000)

#### 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 linked ListRemoveManyAtBeginning benchmark report and the benchmarking workflow in docs/benchmarking-workflow-dotnet-runtime.md, then run the provided benchmarks_ci.py command for MicroBenchmarks.FSharp.Collections+CollectionsBenchmark. The issue reports an improvement but does not identify a code change or define what completion should look like, so triage is needed before implementation.

Written by the indexing model from the issue text.