From: Peter Zijlstra <peterz@infradead.org>
To: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>,
mingo@kernel.org, linux-kernel@vger.kernel.org,
yuyang.du@intel.com, Morten.Rasmussen@arm.com,
linaro-kernel@lists.linaro.org, pjt@google.com,
bsegall@google.com
Subject: Re: [PATCH 4/7 v3] sched: propagate load during synchronous attach/detach
Date: Thu, 15 Sep 2016 19:54:55 +0200 [thread overview]
Message-ID: <20160915175455.GI5012@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <038286f2-02bf-e635-e60a-33904e38826c@arm.com>
On Thu, Sep 15, 2016 at 06:36:53PM +0100, Dietmar Eggemann wrote:
> > We did however loose a lot on why and how min(1, runnable_avg) is a
> > sensible thing to do...
>
> Do you refer to the big comment on top of this if condition in the old
> code in __update_group_entity_contrib()? The last two subsections of it
> I never understood ...
>
> [...]
Read the thread here:
http://www.gossamer-threads.com/lists/linux/kernel/1558210
But Vince's explanation earlier is also good.
next prev parent reply other threads:[~2016-09-15 17:55 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-12 7:47 [PATCH 0/7 v3] sched: reflect sched_entity move into task_group's load Vincent Guittot
2016-09-12 7:47 ` [PATCH 1/7 v3] sched: factorize attach entity Vincent Guittot
2016-09-12 7:47 ` [PATCH 2/7 v3] sched: fix hierarchical order in rq->leaf_cfs_rq_list Vincent Guittot
2016-09-21 10:14 ` Dietmar Eggemann
2016-09-21 12:34 ` Vincent Guittot
2016-09-21 17:25 ` Dietmar Eggemann
2016-09-21 18:02 ` Vincent Guittot
2016-09-12 7:47 ` [PATCH 3/7 v3] sched: factorize PELT update Vincent Guittot
2016-09-15 13:09 ` Peter Zijlstra
2016-09-15 13:30 ` Vincent Guittot
2016-09-12 7:47 ` [PATCH 4/7 v3] sched: propagate load during synchronous attach/detach Vincent Guittot
2016-09-15 12:55 ` Peter Zijlstra
2016-09-15 13:01 ` Vincent Guittot
2016-09-15 12:59 ` Peter Zijlstra
2016-09-15 13:11 ` Vincent Guittot
2016-09-15 13:11 ` Dietmar Eggemann
2016-09-15 14:31 ` Vincent Guittot
2016-09-15 17:20 ` Dietmar Eggemann
2016-09-15 15:14 ` Peter Zijlstra
2016-09-15 17:36 ` Dietmar Eggemann
2016-09-15 17:54 ` Peter Zijlstra [this message]
2016-09-15 14:43 ` Peter Zijlstra
2016-09-15 14:51 ` Vincent Guittot
2016-09-19 3:19 ` Wanpeng Li
2016-09-12 7:47 ` [PATCH 5/7 v3] sched: propagate asynchrous detach Vincent Guittot
2016-09-12 7:47 ` [PATCH 6/7 v3] sched: fix task group initialization Vincent Guittot
2016-09-12 7:47 ` [PATCH 7/7 v3] sched: fix wrong utilization accounting when switching to fair class Vincent Guittot
2016-09-15 13:18 ` Peter Zijlstra
2016-09-15 15:36 ` Vincent Guittot
2016-09-16 12:16 ` Peter Zijlstra
2016-09-16 14:23 ` Vincent Guittot
2016-09-20 11:54 ` Peter Zijlstra
2016-09-20 13:06 ` Vincent Guittot
2016-09-22 12:25 ` Peter Zijlstra
2016-09-26 14:53 ` Peter Zijlstra
2016-09-20 16:59 ` bsegall
2016-09-22 8:33 ` Peter Zijlstra
2016-09-22 17:10 ` bsegall
2016-09-16 10:51 ` Peter Zijlstra
2016-09-16 12:45 ` Vincent Guittot
2016-09-30 12:01 ` [tip:sched/core] sched/core: Fix incorrect " tip-bot for Vincent Guittot
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