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Subject: Re: [PATCH 5/6] sched: Use leaf_cfs_rqs in load_balance_fair()
From: Peter Zijlstra <peterz@infradead.org>
To: "Jan H." =?ISO-8859-1?Q?Sch=F6nherr?= <schnhrr@cs.tu-berlin.de>
Cc: Ingo Molnar <mingo@elte.hu>, linux-kernel@vger.kernel.org
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Date: Wed, 13 Jul 2011 22:44:26 +0200
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On Wed, 2011-07-13 at 20:13 +0200, Jan H. Schönherr wrote:
> Since commit 3d4b47b4 ("sched: Implement on-demand (active) cfs_rq list")
> the leaf_cfs_rqs provide an advantage over the task_group list.
> 
> Make use of it in load_balance_fair(), so that we do not unnecessarily
> iterate over empty cfs_rqs where we cannot pull anything from.

I just send a similar patch today:

https://lkml.org/lkml/2011/7/13/94