On Tue, 20 Apr 2021 at 17:20, Rik van Riel wrote:
>
> On Tue, 2021-04-20 at 11:04 +0200, Vincent Guittot wrote:
> > On Mon, 19 Apr 2021 at 18:51, Rik van Riel wrote:
> > >
> > > @@ -10688,7 +10697,7 @@ static int newidle_balance(struct rq
> > > *this_rq, struct rq_flags *rf)
> > > if (thi
On Tue, 2021-04-20 at 11:04 +0200, Vincent Guittot wrote:
> On Mon, 19 Apr 2021 at 18:51, Rik van Riel wrote:
> >
> > @@ -10688,7 +10697,7 @@ static int newidle_balance(struct rq
> > *this_rq, struct rq_flags *rf)
> > if (this_rq->nr_running != this_rq->cfs.h_nr_running)
> >
On Mon, 19 Apr 2021 at 18:51, Rik van Riel wrote:
>
> The try_to_wake_up function has an optimization where it can queue
> a task for wakeup on its previous CPU, if the task is still in the
> middle of going to sleep inside schedule().
>
> Once schedule() re-enables IRQs, the task will be woken up
The try_to_wake_up function has an optimization where it can queue
a task for wakeup on its previous CPU, if the task is still in the
middle of going to sleep inside schedule().
Once schedule() re-enables IRQs, the task will be woken up with an
IPI, and placed back on the runqueue.
If we have suc
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