Remove IO during measurements

latency-measure/src/main.c

@@ -93,6 +93,8 @@ static void *timerthread(void *p) {
     next = add_ns(current, param->interval);
   }
 
+  printf("Done\n");
+
   return NULL;
 }
 
@@ -134,7 +136,7 @@ int main(int argc, char *argv[]) {
   main_param_t main_param;
 
   // Default values
-  param.interval = NSECS_PER_SECOND;
+  param.interval = 1000000;
   param.max_cycles = 100;
   param.priority = 80;
 
@@ -142,21 +144,26 @@ int main(int argc, char *argv[]) {
 
   process_options(argc, argv, &param, &main_param);
 
-  int err =
-      pthread_create(&thread, NULL, timerthread, (void *)&param);
+  sleep(3);
 
-  if(err)
-    error(EXIT_FAILURE, errno, "Couldn't create thread");
+  pthread_create(&thread, NULL, timerthread, (void *)&param);
 
-  for (;;) {
+  sleep(10);
 
-    usleep(main_param.refresh_rate);
+  printf("Maximum latency: %" PRIi64 "us (%d)\n", (param.stat.max_diff / 1000), param.stat.nb_cycles);
 
-    printf("Maximum latency: %" PRIi64 "us (%d)\n", (param.stat.max_diff / 1000), param.stat.nb_cycles);
+  //if(err)
+  //  error(EXIT_FAILURE, errno, "Couldn't create thread");
 
-    if( param.max_cycles == param.stat.nb_cycles )
-      break;
-  }
+  //for (;;) {
+
+  //  usleep(main_param.refresh_rate);
+
+  //  printf("Maximum latency: %" PRIi64 "us (%d)\n", (param.stat.max_diff / 1000), param.stat.nb_cycles);
+
+  //  if( param.max_cycles == param.stat.nb_cycles )
+  //    break;
+  //}
 
   exit(EXIT_SUCCESS);
 }