Fix CPU affinity issue

clock-res/src/clockres.c

@@ -53,17 +53,17 @@ static void *timerthread(void *p) {
   thread_param_t *param = (thread_param_t *)p;
   thread_stat_t *stat = &param->stat;
 
-  // Set thread priority
-  priority.sched_priority = param->priority;
-  if (sched_setscheduler(0, SCHED_FIFO, &priority))
-    error(EXIT_FAILURE, errno, "Couldn't set priority");
-
   // Set thread CPU affinity
   CPU_ZERO(&mask);
   CPU_SET(1, &mask);
-  if (pthread_setaffinity_np(0, sizeof(mask), &mask) == -1)
+  if (sched_setaffinity(0, sizeof(mask), &mask))
     printf("Could not set CPU affinity to CPU #1\n");
 
+  // Set thread priority
+  priority.sched_priority = param->priority;
+  if (sched_setscheduler(0, SCHED_FIFO, &priority))
+    error(EXIT_FAILURE, errno, "Couldn't set priority");
+
   stat->max_res = 0;
   stat->min_res = UINT64_MAX;