线程绑定cpu

#define _GNU_SOURCE
#include


cpu_set_t mask;
cpu_set_t get;
int j;


int num = sysconf(_SC_NPROCESSORS_CONF);
printf("system has %d processor(s)\n", num);

CPU_ZERO(&mask);
CPU_SET(1, &mask);
if (pthread_setaffinity_np(pthread_self(), sizeof(mask), &mask) < 0) {
printf("set thread affinity failed\n");
}

CPU_ZERO(&get);
if (pthread_getaffinity_np(pthread_self(), sizeof(get), &get) < 0) {
printf("get thread affinity failed\n");
}
for (j = 0; j < num; j++) {
if (CPU_ISSET(j, &get)) {
printf("thread %d is running in processor %d\n", (int)pthread_self(), j);
}
}