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Date: Thu, 27 Aug 2009 10:51:35 -0600
From: "Chris Friesen" <cfriesen@nortel.com>
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To: raz ben yehuda <raziebe@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>,
       Christoph Lameter <cl@linux-foundation.org>, mingo@elte.hu,
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Subject: Re: RFC: THE OFFLINE SCHEDULER
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On 08/26/2009 03:37 PM, raz ben yehuda wrote:
> 
> On Wed, 2009-08-26 at 15:15 -0600, Chris Friesen wrote:

>> We gave it as close to a whole cpu as we could using cpu and irq
>> affinity and we used message queues in shared memory to allow another
>> cpu to handle I/O.  In our case we still had kernel threads running on
>> the app cpu, but if we'd had a straightforward way to avoid them we
>> would have used it.

> Chris. I offer myself to help anyone wishes to apply OFFSCHED.

I just went and read the docs.  One of the things I noticed is that it
says that the offlined cpu cannot run userspace tasks.  For our
situation that's a showstopper, unfortunately.

Chris