real time scheduling in Linux

Question

This morning I read about Linux real time scheduling. As per the book \'Linux system programming by Robert Love\', there are two main scheduling there. One is SCHED_FIFO, fi

Answer 1

man sched_setscheduler explains these scheduling policies in detail.

In this particular case because the two real-time processes have the same priority none of them will preempt the other. A SCHED_FIFO process runs until it blocks itself, SCHED_RR process runs until it blocks itself or its time quantum expires.