Messages in this thread | | | Subject | Re: Question about setting affinity in 2.4 | From | Arjan van de Ven <> | Date | Mon, 19 Feb 2007 14:33:06 +0100 |
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On Sun, 2007-02-18 at 18:02 -0800, Phy Prabab wrote: > Hello everyone, > > I am trying to set affinity on a program to make sure I can get the > best use of the cache as possible and to eliminate as much noise as > possible with running my program. I have tried unsuccessfully to set > affinity using sched_set/getaffinity and the CPU_SET macros. In > particular, I can not seem to get the process to use affinity I > specify as in: > > int main () { > cpu_set_t mask; > cpu_set_t setmask; > long long x; > double foo; > printf("Mask set to %08lx\n", sched_getaffinity(0, &mask));
int sched_setaffinity(pid_t pid, unsigned int cpusetsize, cpu_set_t *mask);
sched_setaffinity takes 3 not 2 parameters.
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