Re: [Xen-devel] [PATCH v2 02/16] xl: allow for node-wise specification of vcpu pinning

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

On gio, 2013-11-14 at 14:24 +0000, Ian Jackson wrote:
> Dario Faggioli writes ("[PATCH v2 02/16] xl: allow for node-wise 
> specification of vcpu pinning"):
> > 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;
> ...
> >  * fixing the handling (well, the rejection, actually) of
> >    "^all" and "^nodes:all";
> 
> If it were me I would have made ^all and ^nodes:all work, rather than
> rejecting them.  That makes it possible for
> semi-automaticallyy-generated configs to specify
>   "blah,blah,^all,1-3"
> to override the first part.
> 
Oh, I see... No, sorry, I completely failed at spotting the possibility
of enabling such an use-case. Now that you mention it, I see it exists
and could be useful, although, probably, not very common.

> But that's not really important.
> 
Yeah, I think so. Anyway, it's nothing that can't be done with a
follow-up patch, once this series is in (/me adds it to my my TODO
list. :-) )

Thanks and Regards,
Dario

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

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