linux-kernel - Re: [RFCv3 PATCH 29/48] sched: Highest energy aware balancing sched

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Message-ID: <20150323161606.GK23123@twins.programming.kicks-ass.net>
Date:	Mon, 23 Mar 2015 17:16:06 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Morten Rasmussen <morten.rasmussen@....com>
Cc:	mingo@...hat.com, vincent.guittot@...aro.org,
	dietmar.eggemann@....com, yuyang.du@...el.com,
	preeti@...ux.vnet.ibm.com, mturquette@...aro.org, nico@...aro.org,
	rjw@...ysocki.net, juri.lelli@....com, linux-kernel@...r.kernel.org
Subject: Re: [RFCv3 PATCH 29/48] sched: Highest energy aware balancing
 sched_domain level pointer

On Wed, Feb 04, 2015 at 06:31:06PM +0000, Morten Rasmussen wrote:
> Add another member to the family of per-cpu sched_domain shortcut
> pointers. This one, sd_ea, points to the highest level at which energy
> model is provided. At this level and all levels below all sched_groups
> have energy model data attached.

Here might be a good point to discuss what it means for the topology to
have partial energy model information.
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