Hello Warren,

2010/3/3 Warren Harris <warrensomebody@gmail.com>:
> Thanks, this is excellent info. I've been using both gprof and shark and
> understand the tradeoffs. I really was looking for a way to just provide a
> simple live "gc overhead" number that we could graph along with a bunch of
> other server health stats for our zenoss monitors.

So simply enable gprof on OCaml binaries and look at the total
fraction of time spent in OCaml GC functions!

 http://caml.inria.fr/pub/ml-archives/caml-list/2003/01/e8ee9d44073ff9cb7d257fef86bc8f53.en.html

Best regards,
david