Re: [PATCH] sched: fix the calculation of __sched_period in sched_slice()

2016-05-09 Thread Peter Zijlstra
On Mon, May 09, 2016 at 10:45:57AM +0800, Zhou Chengming wrote: > When we get the sched_slice of a sched_entity, we use cfs_rq->nr_running > to calculate the whole __sched_period. But cfs_rq->nr_running is the > number of sched_entity in that cfs_rq, rq->nr_running is the number > of all the tasks

[PATCH] sched: fix the calculation of __sched_period in sched_slice()

2016-05-08 Thread Zhou Chengming
When we get the sched_slice of a sched_entity, we use cfs_rq->nr_running to calculate the whole __sched_period. But cfs_rq->nr_running is the number of sched_entity in that cfs_rq, rq->nr_running is the number of all the tasks that are not throttled. So we should use the rq->nr_running to calculate