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Re: [Xen-devel] [PATCH 3 of 3] xl: allow for node-wise specification of vcpu pinning

On Thu, 2012-10-18 at 16:30 +0100, George Dunlap wrote:
> On Tue, Oct 16, 2012 at 6:26 PM, Dario Faggioli
> <dario.faggioli@xxxxxxxxxx> wrote:
> > Making it possible to use something like the following:
> >  * "nodes:0-3": all pCPUs of nodes 0,1,2,3;
> >  * "nodes:0-3,^node:2": all pCPUS of nodes 0,1,3;
> >  * "1,nodes:1-2,^6": pCPU 1 plus all pCPUs of nodes 1,2 but not pCPU 6;
> >  * ...
> >
> > In both domain config file and `xl vcpu-pin'.
> >
> > Signed-off-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
> Is it OK if I give this an "I'm OK with the idea but I'm too lazy to
> figure out if the parsing code is doing the right thing" Ack? :-)
Well, it's certainly ok with me... :-)

Actually, the new parsing code is nothing particularly sexy, and the
only relevant bit is the one IanC commented about, i.e., checking for a
"node:" substring at the beginning of each ',' separated element of the
original string.

That's it.

The reason why this requires this whole lot of + lines is that I need a
couple of nodemap where to store the data, and declaring, initializing,
allocating and freeing them requires that. :-(

Thanks and Regards,

<<This happens because I choose it to happen!>> (Raistlin Majere)
Dario Faggioli, Ph.D, http://retis.sssup.it/people/faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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