Interface FnOptions

Runs once after all iterations of a task phase (warmup or run).

Runs after each iteration in both warmup and run phases.

Whether the provided task function is asynchronous, otherwise it is determined automatically.

Measuring an async task awaits it inside the timed window, so each sample includes one microtask-turn overhead that subtractTimerOverhead does not remove. For sub-resolution timings, prefer overriddenDuration.

Runs once before the iterations of a task phase (warmup or run).

Runs before each iteration in both warmup and run phases.

Retain samples for this task, overriding the bench-level retainSamples option

An AbortSignal for aborting this specific task

If not provided, falls back to BenchOptions.signal