> Hi!
>
> I did some tests, and when I replace getuid() or getpid() with
> gettimeofday(), it actually gets faster.
>
> getuid takes 14usec on my machine.
> gettimeofday takes 4usec on my machine.
>
> I think that is pretty strange.
> Pavel
>
> #include <sys/time.h>
> #include <unistd.h>
>
> void main(void)
> {
> struct timeval tv1, tv2, tv3;
>
> gettimeofday(&tv1, 0);
> getuid(); <--- here
> gettimeofday(&tv2, 0);
>
> printf("Time1: %d:%d\n", tv1.tv_sec, tv1.tv_usec);
> printf("Time2: %d:%d\n", tv2.tv_sec, tv2.tv_usec);
> }
Just add one getuid() before the first gettimeofday() and the strangeness
takes another form. The difference disappears.
I'm afraid you are measuring your cache performance I guess.
Robert
-- Robert de Vries rhdv@rhdv.cistron.nl
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