Has anyone had luck using oprofile to profile ocaml-generated executables? 
I've played around with it, and it's quite nice, and seems to have some real 
advantages over gprof (works sensibly in the presence of threads, works 
without overhead or instrumentation, etc.) The one thing I haven't been able 
to get working, though, is call-graph analysis. To me, it looks like the 
call-graph information isn't available for ocaml executables. Has anyone had 
any luck with getting this to work?

Yaron