Get actual FPS of cache TOP?

[keithlostracco]

Is it possible to get the actual FPS value a cache TOP (or the whole project) is running at. I'm using the cache TOP for a delay line that I would like to be able to sync to BPM. I noticed when the FPS changes from 60 fps my math doesn't work out right using 60 FPS to set the start frame for the cache TOP. I've tried both $FPS variable and the fps command but both return the set FPS.

[keithlostracco]

My bad I completely forgot about the perform chop. Sorry for such a brainless question.