linux-kernel - Re: RFC: THE OFFLINE SCHEDULER

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Date:	Wed, 26 Aug 2009 18:11:09 +0300
From:	raz ben yehuda <raziebe@...il.com>
To:	Pekka Enberg <penberg@...helsinki.fi>
Cc:	Maxim Levitsky <maximlevitsky@...il.com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Chris Friesen <cfriesen@...tel.com>,
	Mike Galbraith <efault@....de>, riel@...hat.com, mingo@...e.hu,
	andrew motron <akpm@...ux-foundation.org>,
	wiseman@...s.biu.ac.il, lkml <linux-kernel@...r.kernel.org>,
	linux-rt-users@...r.kernel.org
Subject: Re: RFC: THE OFFLINE SCHEDULER

sos linux is at:


http://sos-linux.svn.sourceforge.net/viewvc/sos-linux/offsched/

you will find the modules, once shot patches , split patches, and a
Documentation folder. 


On Wed, 2009-08-26 at 18:06 +0300, Pekka Enberg wrote:
> On Wed, Aug 26, 2009 at 5:54 PM, raz ben yehuda<raziebe@...il.com> wrote:
> >> I have always been fascinated by the idea of controlling another cpu
> >> from the main CPU.
> >>
> >> Usually these cpus are custom, run proprietary software, and have no
> >> datasheet on their I/O interfaces.
> >>
> >> But, being able to turn an ordinary CPU into something like that seems
> >> to be very nice.
> >>
> >> For example, It might help with profiling. Think about a program that
> >> can run uninterrupted how much it wants.
> >>
> >> I might even be better, if the dedicated CPU would use a predefined
> >> reserved memory range (I wish there was a way to actually lock it to
> >> that range)
> >>
> >> On the other hand, I could see this as a jump platform for more
> >> proprietary code, something like that: we use linux in out server
> >> platform, but out "insert buzzword here" network stack pro+ can handle
> >> 100% more load that linux does, and it runs on a dedicated core....
> >>
> >> In the other words, we might see 'firmwares' that take an entire cpu for
> >> their usage.
> >
> > This is exactly what offsched (sos) is. you got it. SOS was partly inspired by the notion of a GPU.
> 
> So where are the patches? The URL in the original post returns 404...

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