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From: vincent.guittot@linaro.org (Vincent Guittot)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 6/7] sched: replace capacity_factor by usage
Date: Fri, 10 Oct 2014 09:18:23 +0200	[thread overview]
Message-ID: <CAKfTPtATuTWSU+R289Q8qpVR4b+D1HdrKjKHZNz7b_ahAiWOWA@mail.gmail.com> (raw)
In-Reply-To: <CAKfTPtCQzdDuNmifU3sobqSke0Mri0jDVpJTwuKytaNs_RLM1w@mail.gmail.com>

On 10 October 2014 09:17, Vincent Guittot <vincent.guittot@linaro.org> wrote:
>
> yes i think it latter because it give a more stable view of the

s/latter/matter/

> "overload state" and "have  free capacity state" of the CPU.
> One additional point is that the imbalance_pct will ensure that a
> cpu/group will not been seen as having capacity if its available
> capacity is only 1-5% which will generate spurious task migration
>
> I will add these details in the commit log and in a comment in the code

  reply	other threads:[~2014-10-10  7:18 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-07 12:13 [PATCH v7 0/7] sched: consolidation of cpu_capacity Vincent Guittot
2014-10-07 12:13 ` [PATCH v7 1/7] sched: add per rq cpu_capacity_orig Vincent Guittot
2014-10-07 12:13 ` [PATCH v7 2/7] sched: move cfs task on a CPU with higher capacity Vincent Guittot
2014-10-09 11:23   ` Peter Zijlstra
2014-10-09 14:59     ` Vincent Guittot
2014-10-09 15:30       ` Peter Zijlstra
2014-10-10  7:46         ` Vincent Guittot
2014-10-07 12:13 ` [PATCH v7 3/7] sched: add utilization_avg_contrib Vincent Guittot
2014-10-08 17:04   ` Dietmar Eggemann
2014-10-07 12:13 ` [PATCH 4/7] sched: Track group sched_entity usage contributions Vincent Guittot
2014-10-07 20:15   ` bsegall at google.com
2014-10-08  7:16     ` Vincent Guittot
2014-10-08 11:13     ` Morten Rasmussen
2014-10-07 12:13 ` [PATCH v7 5/7] sched: get CPU's usage statistic Vincent Guittot
2014-10-09 11:36   ` Peter Zijlstra
2014-10-09 13:57     ` Vincent Guittot
2014-10-09 15:12       ` Peter Zijlstra
2014-10-10 14:38         ` Vincent Guittot
2014-10-07 12:13 ` [PATCH v7 6/7] sched: replace capacity_factor by usage Vincent Guittot
2014-10-09 12:16   ` Peter Zijlstra
2014-10-09 14:18     ` Vincent Guittot
2014-10-09 15:18       ` Peter Zijlstra
2014-10-10  7:17         ` Vincent Guittot
2014-10-10  7:18           ` Vincent Guittot [this message]
2014-11-23  1:03       ` Wanpeng Li
2014-11-24 10:16         ` Vincent Guittot
2014-10-09 14:16   ` Peter Zijlstra
2014-10-09 14:28     ` Vincent Guittot
2014-10-09 14:58   ` Peter Zijlstra
2014-10-21  7:38     ` Vincent Guittot
2014-10-07 12:13 ` [PATCH v7 7/7] sched: add SD_PREFER_SIBLING for SMT level Vincent Guittot

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