System Q&A

Q: How to set the thread priority to RR99?

Reference code:

struct sched_param sched3;  
sched3.sched_priority = 99;
pthread_create(&t3, NULL, (consumer), (void *)6);  
pthread_setname_np(t3,"TESTThread");
rc = pthread_setschedparam(t3, SCHED_RR, &sched3);

After setting, you can view it by cat /proc/pid/stat:

Note: The pid belongs to the corresponding thread instead of the main thread. run htop, and then enter t to check it.