linux-kernel - Re: [PATCH] sched: balance_cpu to consider other cpus in its group as target of (pinned) task migration

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Message-ID: <1338810796.28282.32.camel@twins>
Date:	Mon, 04 Jun 2012 13:53:16 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Mike Galbraith <efault@....de>
Cc:	Prashanth Nageshappa <prashanth@...ux.vnet.ibm.com>,
	mingo@...nel.org, LKML <linux-kernel@...r.kernel.org>,
	roland@...nel.org, Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH] sched: balance_cpu to consider other cpus in its group
 as target of (pinned) task migration

On Mon, 2012-06-04 at 11:25 +0200, Mike Galbraith wrote:
> Isn't this poking the wrong spot?

Yes and no, the use-case is definitely so-so.. However, even if a FIFO
task were to only consume 95% of time, we might still want to balance
things differently, and I don't think we do the sane thing there either.

But fully agreed, if you run FIFO at 100% you get to keep the pieces.
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