[Xenomai] cpu with one core only

Philippe Gerum rpm at xenomai.org
Sat Feb 4 11:10:30 CET 2017


On 02/04/2017 09:19 AM, Ran Shalit wrote:
> Hello,
> 
> It is said in documentation:
> 
> "The key issue is with the number of CPU cores actually running
> real-time threads and receiving interrupts from real-time sources, not
> with the overall number of cores on line on the target hardware.
> Because the Cobalt co-kernel does not share any lock with the regular
> Linux kernel when dealing with real-time activities, a 16-way server
> pinning such activities on not more than four of the available cores
> would still deliver good performances in a Cobalt-based dual kernel
> configuration."
> 
> We plan to use xenomai,
> but the cpu (Atom) is only a single core.
> 
> Can a single core still gives good results with xenomai ?
> 

Yes. There is nothing in the excerpt above which might suggest the
opposite btw.

-- 
Philippe.



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