From: Tejun Heo <tj@kernel.org>
To: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
Mike Galbraith <efault@gmx.de>, Paul Turner <pjt@google.com>,
Chris Mason <clm@fb.com>,
kernel-team@fb.com
Subject: Re: [PATCH 2/3] sched/fair: Add load_weight->runnable_load_{sum|avg}
Date: Fri, 5 May 2017 09:26:35 -0400 [thread overview]
Message-ID: <20170505132635.GB8936@wtj.duckdns.org> (raw)
In-Reply-To: <f3344dc1-37ea-8a77-8d0f-f4c4bdd3710f@arm.com>
On Fri, May 05, 2017 at 02:22:05PM +0100, Dietmar Eggemann wrote:
> Hi Tejun,
>
> On 04/05/17 21:29, Tejun Heo wrote:
> > Currently, runnable_load_avg, which represents the portion of load avg
> > only from tasks which are currently active, is tracked by cfs_rq but
> > not by sched_entity. We want to propagate runnable_load_avg of a
> > nested cfs_rq without affecting load_avg propagation. To implement an
> > equivalent propagation channel, sched_entity needs to track
> > runnable_load_avg too.
> >
> > This patch moves cfs_rq->runnable_load_{sum|avg} into struct
> > load_weight which is already used to track load_avg and shared by both
> > cfs_rq and sched_entity.
> >
> > This patch only changes where runnable_load_{sum|avg} are located and
> > doesn't cause any actual behavior changes. The fields are still only
> > used for cfs_rqs.
>
> This one doesn't apply cleanly on tip/sched/core. There has been a lot
> of changes in the actual PELT code.
The patches are on top of v4.11 as noted in the head message.
Thanks.
--
tejun
next prev parent reply other threads:[~2017-05-05 13:26 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-04 20:28 [RFC PATCHSET v2] sched/fair: fix load balancer behavior when cgroup is in use Tejun Heo
2017-05-04 20:29 ` [PATCH 1/3] sched/fair: Peter's shares_type patch Tejun Heo
2017-05-05 10:40 ` Vincent Guittot
2017-05-05 15:30 ` Tejun Heo
2017-05-10 15:09 ` Tejun Heo
2017-05-10 16:07 ` Vincent Guittot
2017-05-11 6:59 ` Peter Zijlstra
2017-05-05 15:41 ` Peter Zijlstra
2017-05-04 20:29 ` [PATCH 2/3] sched/fair: Add load_weight->runnable_load_{sum|avg} Tejun Heo
2017-05-05 13:22 ` Dietmar Eggemann
2017-05-05 13:26 ` Tejun Heo [this message]
2017-05-05 13:37 ` Dietmar Eggemann
2017-05-04 20:30 ` [PATCH 3/3] sched/fair: Propagate runnable_load_avg independently from load_avg Tejun Heo
2017-05-05 10:42 ` Vincent Guittot
2017-05-05 12:18 ` Vincent Guittot
2017-05-05 13:26 ` Tejun Heo
2017-05-05 16:51 ` Vincent Guittot
2017-05-05 8:46 ` [RFC PATCHSET v2] sched/fair: fix load balancer behavior when cgroup is in use Vincent Guittot
2017-05-05 13:28 ` Tejun Heo
2017-05-05 13:32 ` Vincent Guittot
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