On Wednesday 21 Mar 2018 at 15:35:18 (+), Patrick Bellasi wrote:
> On 20-Mar 09:43, Dietmar Eggemann wrote:
> > From: Quentin Perret
>
> [...]
>
> > diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> > index 76bd46502486..65a1bead0773 100644
> > --- a/kernel/sched/fair.c
> > +++ b/kern
On Friday 23 Mar 2018 at 16:00:59 (+), Morten Rasmussen wrote:
> On Thu, Mar 22, 2018 at 09:27:43AM -0700, Joel Fernandes wrote:
> > Hi,
> >
> > On Tue, Mar 20, 2018 at 2:43 AM, Dietmar Eggemann
> > wrote:
[...]
> > Is it possible that before the wakeup, the task's affinity is changed
> > s
On Fri, Mar 23, 2018 at 6:47 PM, Quentin Perret wrote:
> On Thursday 22 Mar 2018 at 13:19:03 (-0700), Joel Fernandes wrote:
>> On Thu, Mar 22, 2018 at 11:06 AM, Patrick Bellasi
>> wrote:
>
> [...]
>
>> >> > @@ -6555,6 +6613,14 @@ select_task_rq_fair(struct task_struct *p, int
>> >> > prev_cpu, i
On March 23, 2018 6:34:22 PM PDT, Quentin Perret wrote:
>On Friday 23 Mar 2018 at 18:13:56 (-0700), Joel Fernandes wrote:
>> Hi Morten,
>>
>> On Fri, Mar 23, 2018 at 8:47 AM, Morten Rasmussen
>> wrote:
>> > On Thu, Mar 22, 2018 at 01:10:22PM -0700, Joel Fernandes wrote:
>
>[...]
>
>> > You mea
On Thursday 22 Mar 2018 at 13:19:03 (-0700), Joel Fernandes wrote:
> On Thu, Mar 22, 2018 at 11:06 AM, Patrick Bellasi
> wrote:
[...]
> >> > @@ -6555,6 +6613,14 @@ select_task_rq_fair(struct task_struct *p, int
> >> > prev_cpu, int sd_flag, int wake_f
> >> > break;
> >>
On Friday 23 Mar 2018 at 18:13:56 (-0700), Joel Fernandes wrote:
> Hi Morten,
>
> On Fri, Mar 23, 2018 at 8:47 AM, Morten Rasmussen
> wrote:
> > On Thu, Mar 22, 2018 at 01:10:22PM -0700, Joel Fernandes wrote:
[...]
> > You mean if SD_BALANCE_WAKE isn't set on sched_domains?
>
> Yes.
>
> > The
On Friday 23 Mar 2018 at 15:47:45 (+), Morten Rasmussen wrote:
> On Thu, Mar 22, 2018 at 01:10:22PM -0700, Joel Fernandes wrote:
> > On Wed, Mar 21, 2018 at 8:35 AM, Patrick Bellasi
> > wrote:
> > > [...]
> > >
> > >> @@ -6555,6 +6613,14 @@ select_task_rq_fair(struct task_struct *p, int
> > >
Hi Morten,
On Fri, Mar 23, 2018 at 8:47 AM, Morten Rasmussen
wrote:
> On Thu, Mar 22, 2018 at 01:10:22PM -0700, Joel Fernandes wrote:
>> On Wed, Mar 21, 2018 at 8:35 AM, Patrick Bellasi
>> wrote:
>> > [...]
>> >
>> >> @@ -6555,6 +6613,14 @@ select_task_rq_fair(struct task_struct *p, int
>> >> p
On Fri, Mar 23, 2018 at 9:00 AM, Morten Rasmussen
wrote:
> On Thu, Mar 22, 2018 at 09:27:43AM -0700, Joel Fernandes wrote:
>> >
>> > In case an energy model is available, waking tasks are re-routed into a
>> > new energy-aware placement algorithm. The eligible CPUs to be used in the
>> > energy-aw
On Thu, Mar 22, 2018 at 09:27:43AM -0700, Joel Fernandes wrote:
> Hi,
>
> On Tue, Mar 20, 2018 at 2:43 AM, Dietmar Eggemann
> wrote:
> >
> > From: Quentin Perret
> >
> > In case an energy model is available, waking tasks are re-routed into a
> > new energy-aware placement algorithm. The eligible
On Thu, Mar 22, 2018 at 01:10:22PM -0700, Joel Fernandes wrote:
> On Wed, Mar 21, 2018 at 8:35 AM, Patrick Bellasi
> wrote:
> > [...]
> >
> >> @@ -6555,6 +6613,14 @@ select_task_rq_fair(struct task_struct *p, int
> >> prev_cpu, int sd_flag, int wake_f
> >> break;
> >>
On Thu, Mar 22, 2018 at 11:06 AM, Patrick Bellasi
wrote:
[..]
>> > +static inline bool wake_energy(struct task_struct *p, int prev_cpu)
>> > +{
>> > + struct sched_domain *sd;
>> > +
>> > + if (!static_branch_unlikely(&sched_energy_present))
>> > + return false;
>> > +
>>
On Wed, Mar 21, 2018 at 8:35 AM, Patrick Bellasi
wrote:
> [...]
>
>> @@ -6555,6 +6613,14 @@ select_task_rq_fair(struct task_struct *p, int
>> prev_cpu, int sd_flag, int wake_f
>> break;
>> }
>>
>> + /*
>> + * Energy-aware task placement
On 22-Mar 09:27, Joel Fernandes wrote:
> Hi,
>
> On Tue, Mar 20, 2018 at 2:43 AM, Dietmar Eggemann
> wrote:
> >
> > From: Quentin Perret
[...]
> > +static inline bool wake_energy(struct task_struct *p, int prev_cpu)
> > +{
> > + struct sched_domain *sd;
> > +
> > + if (!static_bran
Hi,
On Tue, Mar 20, 2018 at 2:43 AM, Dietmar Eggemann
wrote:
>
> From: Quentin Perret
>
> In case an energy model is available, waking tasks are re-routed into a
> new energy-aware placement algorithm. The eligible CPUs to be used in the
> energy-aware wakeup path are restricted to the highest n
On 20-Mar 09:43, Dietmar Eggemann wrote:
> From: Quentin Perret
[...]
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index 76bd46502486..65a1bead0773 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -6513,6 +6513,60 @@ static unsigned long compute_energy(struct tas
From: Quentin Perret
In case an energy model is available, waking tasks are re-routed into a
new energy-aware placement algorithm. The eligible CPUs to be used in the
energy-aware wakeup path are restricted to the highest non-overutilized
sched_domain containing prev_cpu and this_cpu. If no such
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