On Monday 01 December 2008 18:57:50 Chris Radek wrote:
> On Mon, Dec 01, 2008 at 05:46:48PM +0000, Leslie Newell wrote:
> > Is it possible to use EMC with multi-core processors? I see that by 
> > default the kernel is compiled to only support one processor but what 
> > would happen if SMP support was compiled in? Would RTAI choke?
> > 
> > As multi-core processors become more prevalent, would it be practical to 
> > dedicate one core to the realtime stuff and let the other(s) do the 
> > rest? It seems wasteful but I would have thought it would give very low 
> > latency.
> 
> I did this a while back on a dual P3 system.  It gave excellent
> latency.  Like you say, you can isolate a CPU so nothing but realtime
> tasks run on it.  No special support is needed in EMC2; it is just a
> kernel and RTAI configuration issue.
> 
> It was quite a job to get everything compiled right.  I hope it's
> easier now but I wouldn't bet on it.

Nice. What are the basic config settings you have to do?
How to bind rtai to a CPU?

-- 
Greetings Michael.

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