benchmarking my code
 

Is there a good program that will test my code for the most executed bits? I want to do some optimisation but I'd like to find out which parts of the program are slowing it down the most so I can concentrate on those parts.
TIA

I assume you're using gcc/g++, in which case you may want to look at gprof, which is a part of the gcc package I think. You'll need to compile your binaries with profiling support (see the gcc/g++/gprof manpages).

If you do a search for gprof on www.freshmeat.net, you'll see several graphical front-ends to help you analyse the results.

That seems to be what I'm looking for. Thanks a lot!