I did try Shark and didn't like that it was profiling everything that
was running.
Why does this matter? It is trivially easy to prune other
applications out of the display and it is often good to know why you
are losing the CPU, something that Shark can tell you, but gprof will
not.
The bottom line for me is that prof is very easy to use and gives me
enough information to speed up my program. These other methods are a
hassle.
