Attribute Macro bench 

#[bench]

#[gpui::bench] annotates a Criterion benchmark that runs with GPUI support.

Use #[gpui::bench(inputs = some_iterable())] on benchmarks that take an additional input argument; the generated benchmark uses Criterion’s bench_with_input. group, input_name, and sample_size can customize the generated input benchmark group.

The benchmark crate must add criterion and gpui_platform (with its test-support feature) to its dev-dependencies and enable gpui’s bench feature, since the generated code references all three.