linux-kernel - Re: [PATCH 7/8] sched: prevent to re-select dst-cpu in load

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Message-ID: <1363705546.22553.61.camel@laptop>
Date:	Tue, 19 Mar 2013 16:05:46 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Joonsoo Kim <iamjoonsoo.kim@....com>
Cc:	Ingo Molnar <mingo@...hat.com>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/8] sched: prevent to re-select dst-cpu in
 load_balance()

On Thu, 2013-02-14 at 14:48 +0900, Joonsoo Kim wrote:
> Commit 88b8dac0 makes load_balance() consider other cpus in its group.
> But, in that, there is no code for preventing to re-select dst-cpu.
> So, same dst-cpu can be selected over and over.
> 
> This patch add functionality to load_balance() in order to exclude
> cpu which is selected once.

Oh man.. seriously? Did you see this happen? Also, can't we simply
remove it from lb->cpus?

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