[oe] Does OE’s Angstrom Linux support SMP (Symmetric multiprocessing) on beagle board.

[Phil Blundell]

I would have thought the interconnect performance would be the least of
your worries.  It seems that a rather bigger obstacle to running any
kind of SMP on this hardware would be the issue that the two cores have
different instruction sets: the DSP can't execute ARM code, and the ARM
can't execute DSP code.

p.

On Tue, 2010-01-12 at 07:51 -0800, gagan singh wrote:
> Hi Phil,
>                
> I thought general response time of any general application time will be faster.
> Say Just getting a feeling of running General purpose Computer OS/applications  on a 1 GHz  processor while actually it is running on 500MHz CPU with SMP support(Keeping overhead time aside)
>            DSP seems to remain idle most of the time while everything runs on Arm core.  You says difficult to implement on that sort Of Cores. Do the inter communication link/memory interface  is bottle neck for implementing shared workload.
>  
> regards
>  
> Gagan
> 
> 
> --- On Tue, 1/12/10, Phil Blundell <philb at gnu.org> wrote:
> 
> 
> From: Phil Blundell <philb at gnu.org>
> Subject: Re: [oe] Does OE’s Angstrom Linux support SMP (Symmetric multiprocessing) on beagle board.
> To: openembedded-devel at lists.openembedded.org
> Date: Tuesday, January 12, 2010, 10:06 AM
> 
> 
> On Tue, 2010-01-12 at 06:57 -0800, gagan singh wrote:
> >                      Do the Angstrom version of Linux supports SMP for  Dual core (A8 + TI DSP 320C64x) beagle board. If not, where I should look in tutorial to work on adding support for such a feature.
> >  I try Google it but no much could be located.
> 
> I'm not quite sure what you are trying to do here.  It's hard to imagine
> how you could have any meaningful kind of "symmetric" multiprocessing on
> that combination of cores.
> 
> What exactly are you hoping to achieve?
> 
> p.
> 
> 
> 
> _______________________________________________
> Openembedded-devel mailing list
> Openembedded-devel at lists.openembedded.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel
> 
> 
> 
>       
> _______________________________________________
> Openembedded-devel mailing list
> Openembedded-devel at lists.openembedded.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel