Re: timing
Glynn Clements <[email protected]>
| Newsgroups | org.kernel.vger.linux-gcc |
|---|---|
| Message-ID | <[email protected]> |
Mehran Rezaei wrote: > For the sake of performance analysis of some programs, I am using > clock() function call. I am running the programs on a linux box (Redhat > 7.2, and my machine is i686). > However, I am not getting the correct results as I expected. Perhaps I > miss something necessary for using timing function calls. [snip] > To my understanding both printfs should at least show 10 seconds > (because of "sleep(10)"). But they do not. clock() reports the amount of CPU time used by the program. sleep() will use negligible CPU time (probably too small to measure). -- Glynn Clements <[email protected]>