Messages in this thread | | | Date | Tue, 30 Apr 2002 00:22:43 +0200 | From | "J.A. Magallon" <> | Subject | Re: Accurately measure CPU cycles used by a program? thanks |
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On 2002.04.30 Wanghong Yuan wrote: >Is there any package or program, which can be used to accurately measure the >CPU cycles used by a program? I think the following code can only provide an >inaccurate one, beause it may count on the waiting time of the program. > >gettimeofday(t1) >runprogam >gettimeofday(t2) >t2-t1 > >If I need to instrument the kernel, which part I should investigate? Thanks >a lot in advance >
man getrusage
-- J.A. Magallon # Let the source be with you... mailto:jamagallon@able.es Mandrake Linux release 8.3 (Cooker) for i586 Linux werewolf 2.4.19-pre7-jam7 #1 SMP jue abr 25 00:19:56 CEST 2002 i686 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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