Is it good to set thread policy to SCHED_RR?

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1

hello!
i seldom set policy in the process with C.
but recently i saw something write pthread_attr_setschedpolicy(&attr2,SCHED_RR);
is there some advantage about SCHED_RR in an OpenWrt process?

below is some info from redhat.com

SCHED_RR is a modification of SCHED_FIFO. Threads with the same priority have a quantum and are round-robin scheduled among all equal priority SCHED_RR threads. This policy is rarely used.