[Perf] Linux/x64: 1 Regression on 5/30/2026 6:39:44 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [6ca055abbe0f7c50651e7768c3f466ef07907dc8](https://github.com/dotnet/sdk/commit/6ca055abbe0f7c50651e7768c3f466ef07907dc8)
Compare | [e6542746cf944ff2a1a595edf2af006ef3046784](https://github.com/dotnet/sdk/commit/e6542746cf944ff2a1a595edf2af006ef3046784)
Diff | [Diff](https://github.com/dotnet/sdk/compare/6ca055abbe0f7c50651e7768c3f466ef07907dc8...e6542746cf944ff2a1a595edf2af006ef3046784)
Configs | CompilationMode:tiered, RunKind:fsharpmicro

### Regressions in MicroBenchmarks.FSharp.Equality.BasicTypes+BasicTypes

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

• [Bool - 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.Equality.BasicTypes+BasicTypes*'
```

### MicroBenchmarks.FSharp.Equality.BasicTypes+BasicTypes.Bool

#### 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 MicroBenchmarks.FSharp.Equality.BasicTypes+BasicTypes.Bool report and the linked baseline/compare commits. Follow the benchmarking workflow and run the provided benchmarks_ci.py command with the FSharp equality filter on Ubuntu. Done means explaining the 1.07x regression and identifying or correcting the change responsible, with benchmark results confirming the outcome.

Written by the indexing model from the issue text.