Hi,
On Tue, 1 Sep 2020 at 21:04, Vincent Guittot wrote:
>
> On Tue, 1 Sep 2020 at 12:15, Jiang Biao wrote:
> >
> > Hi, Vincent
> >
> > Sorry for the late reply.:)
> >
> > On Fri, 28 Aug 2020 at 20:55, Vincent Guittot
> > wrote:
> > >
> > > On Sun, 23 Aug 2020 at 09:33, Jiang Biao wrote:
> > >
On Tue, 1 Sep 2020 at 12:15, Jiang Biao wrote:
>
> Hi, Vincent
>
> Sorry for the late reply.:)
>
> On Fri, 28 Aug 2020 at 20:55, Vincent Guittot
> wrote:
> >
> > On Sun, 23 Aug 2020 at 09:33, Jiang Biao wrote:
> > >
> > > Hi, Vincent and Peter
> > >
> > > On Thu, 20 Aug 2020 at 22:09, Vincent Gu
Hi, Vincent
Sorry for the late reply.:)
On Fri, 28 Aug 2020 at 20:55, Vincent Guittot
wrote:
>
> On Sun, 23 Aug 2020 at 09:33, Jiang Biao wrote:
> >
> > Hi, Vincent and Peter
> >
> > On Thu, 20 Aug 2020 at 22:09, Vincent Guittot
> > wrote:
> > >
> > > On Thu, 20 Aug 2020 at 15:44, wrote:
> >
On Sun, 23 Aug 2020 at 09:33, Jiang Biao wrote:
>
> Hi, Vincent and Peter
>
> On Thu, 20 Aug 2020 at 22:09, Vincent Guittot
> wrote:
> >
> > On Thu, 20 Aug 2020 at 15:44, wrote:
> > >
> > > > That's been said, not compensating the vruntime for a sched_idle task
> > > > makes sense for me. Even i
Hi, Vincent and Peter
On Thu, 20 Aug 2020 at 22:09, Vincent Guittot
wrote:
>
> On Thu, 20 Aug 2020 at 15:44, wrote:
> >
> > > That's been said, not compensating the vruntime for a sched_idle task
> > > makes sense for me. Even if that will only help for others task in the
> > > same cfs_rq
> >
>
On Thu, 20 Aug 2020 at 22:09, Vincent Guittot
wrote:
>
> On Thu, 20 Aug 2020 at 15:44, wrote:
> >
> > > That's been said, not compensating the vruntime for a sched_idle task
> > > makes sense for me. Even if that will only help for others task in the
> > > same cfs_rq
> >
> > Yeah, but it is wort
On Thu, 20 Aug 2020 at 20:58, wrote:
>
> On Thu, Aug 20, 2020 at 02:51:06PM +0200, Vincent Guittot wrote:
> > On Thu, 20 Aug 2020 at 14:00, Jiang Biao wrote:
> > >
> > > From: Jiang Biao
> > >
> > > Vruntime compensation has been down in place_entity() to
> > > boot the waking procedure for fair
On Thu, 20 Aug 2020 at 20:51, Vincent Guittot
wrote:
>
> On Thu, 20 Aug 2020 at 14:00, Jiang Biao wrote:
> >
> > From: Jiang Biao
> >
> > Vruntime compensation has been down in place_entity() to
> > boot the waking procedure for fair tasks. There is no need to
>
> s/boot/boost/ ?
Yes. -:)
>
> >
On Thu, 20 Aug 2020 at 15:44, wrote:
>
> > That's been said, not compensating the vruntime for a sched_idle task
> > makes sense for me. Even if that will only help for others task in the
> > same cfs_rq
>
> Yeah, but it is worth the extra pointer chasing and branches?
For that I let Jiang provid
> That's been said, not compensating the vruntime for a sched_idle task
> makes sense for me. Even if that will only help for others task in the
> same cfs_rq
Yeah, but it is worth the extra pointer chasing and branches?
Then again, I suppose we started all that with the idle_h_nr_running
nonsens
On Thu, 20 Aug 2020 at 14:58, wrote:
>
> On Thu, Aug 20, 2020 at 02:51:06PM +0200, Vincent Guittot wrote:
> > On Thu, 20 Aug 2020 at 14:00, Jiang Biao wrote:
> > >
> > > From: Jiang Biao
> > >
> > > Vruntime compensation has been down in place_entity() to
> > > boot the waking procedure for fair
On Thu, Aug 20, 2020 at 02:51:06PM +0200, Vincent Guittot wrote:
> On Thu, 20 Aug 2020 at 14:00, Jiang Biao wrote:
> >
> > From: Jiang Biao
> >
> > Vruntime compensation has been down in place_entity() to
> > boot the waking procedure for fair tasks. There is no need to
>
> s/boot/boost/ ?
>
>
On Thu, 20 Aug 2020 at 14:00, Jiang Biao wrote:
>
> From: Jiang Biao
>
> Vruntime compensation has been down in place_entity() to
> boot the waking procedure for fair tasks. There is no need to
s/boot/boost/ ?
> do that for SCHED_IDLE task actually.
>
> Not compensating vruntime for SCHED_IDLE
From: Jiang Biao
Vruntime compensation has been down in place_entity() to
boot the waking procedure for fair tasks. There is no need to
do that for SCHED_IDLE task actually.
Not compensating vruntime for SCHED_IDLE task could make
SCHED_IDLE task more harmless for normal tasks.
Signed-off-by: J
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