From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Lameter <cl@linux-foundation.org>
Subject: Re: RFC: THE OFFLINE SCHEDULER
Date: Tue, 25 Aug 2009 11:23:51 -0400 (EDT)
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Cc: raz ben yehuda <raziebe@gmail.com>, riel@redhat.com, mingo@elte.hu,
	peterz@infradead.org, andrew motron <akpm@linux-foundation.org>,
	wiseman@macs.biu.ac.il, lkml <linux-kernel@vger.kernel.org>,
	linux-rt-users@vger.kernel.org
To: Mike Galbraith <efault@gmx.de>
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On Sun, 23 Aug 2009, Mike Galbraith wrote:

> The rest, I'll leave off replying to, we're kinda splitting hairs.  I
> don't see a big generic benefit to OFFSCHED or ilk, others do.

No we are not splitting hairs. OFFSCHED takes the OS noise (interrupts,
timers, RCU, cacheline stealing etc etc) out of certain processors. You
cannot run an undisturbed piece of software on the OS right now.