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Re: Making Xen utilize all cores

On Fri, Aug 29, 2014 at 07:58:26AM +0200, Niels Dettenbach (Syndicat 
IT&Internet) wrote:
> On 29. August 2014 05:32:34 MESZ, Mayuresh <> wrote:
> >The CPU column shows only 2 CPUs. This is actually a quad core
> >processor.
> hmmm,
> as far as i can read  there is no anomaly.
> i read there:
> VCPU: 0-3 (4 cores)
> CPU: any CPU (could run on each core) - this is usual  as long as you  did 
> not pin any cpu to  dom0 or domU's  explicitely.

Yes, but "any CPU" is limited to those listed in CPU column.

See for
example. Here CPU 0,1,2,3 appear. In my output only 0 and 3 do.

Further, I have CPU bound load test scripts. If I launch 2 of them
simultaneously, they get 50% CPU (not 100% which I get when I start
without xen) and take real time which is double the cpu time to finish.


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