Re: [PATCH] schedule: SCHED_RR: Give a fresh time-slice to the task after after it suspends or relinquishes

[Peter Zijlstra]

On Wed, Dec 22, 2021 at 05:15:26PM +0800, zhaoxiu.zeng wrote:
> Assuming the sched_rr_timeslice is 100ms, there are several tasks with the
> same priority t1, t2, t3, ..., and t1 sleeps every 80ms, the scheduling
> timing may be:
>     t1  t2   t3        t1  t2   t3        t1  t2   t3        t1  t2   t3
>     80, 100, 100, ..., 20, 100, 100, ..., 60, 100, 100, ..., 40, 100, 100
> 
> After applying this patch, the scheduling timing may be:
>     t1  t2   t3        t1  t2   t3        t1  t2   t3        t1  t2   t3
>     80, 100, 100, ..., 80, 100, 100, ..., 80, 100, 100, ..., 80, 100, 100
> 

Is this what POSIX mandates or why are you sending this to me ?