time measure

Hi,

I'm writing a survey of distributed computations in which I want to compare
various algorithms on various architectures. the problem is that I don't
know how to measure their efficency. I can of course use Linux's time, but
the problem is that I get real/user/sys times. Real time would be pretty god
if I have computer/cluster exclusively. User/sys tells a lot, but it doesn't
tell me how long my process was waiting for communication which is a huge
problem on clusters.

Do you propably have an idea?
wojtek


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