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Subject: Re: RFC: THE OFFLINE SCHEDULER
From: raz ben yehuda <raziebe@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Lameter <cl@linux-foundation.org>, mingo@elte.hu,
       peterz@infradead.org, maximlevitsky@gmail.com, cfriesen@nortel.com,
       efault@gmx.de, riel@redhat.com, wiseman@macs.biu.ac.il,
       linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org
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Date: Thu, 27 Aug 2009 00:34:13 +0300
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On Wed, 2009-08-26 at 13:50 -0700, Andrew Morton wrote:
> On Wed, 26 Aug 2009 16:40:09 -0400 (EDT)
> Christoph Lameter <cl@linux-foundation.org> wrote:
> 
> > Peter has not given a solution to the problem. Nor have you.
> 
> What problem?
> 
> All I've seen is "I want 100% access to a CPU".  That's not a problem
> statement - it's an implementation.
> 
> What is the problem statement?
> 
> 
> My take on these patches: the kernel gives userspace unmediated access
> to memory resources if it wants that.  The kernel gives userspace
> unmediated access to IO devices if it wants that.  But for some reason
> people freak out at the thought of providing unmediated access to CPU
> resources.
> 
> Don't get all religious about this.  If the change is clean,
> maintainable and useful then there's no reason to not merge it.
thank you Mr Morton. thank you !!!