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Re: [libvirt] [Qemu-devel] qemu -numa option and non-contiguous CPU ranges



On Thu, Jun 21, 2012 at 11:39:46PM +0200, Andre Przywara wrote:
> On 06/21/2012 07:51 PM, Eduardo Habkost wrote:
> >Hi,
> >
> >I just noticed libvirt tries to use the -numa option in a way that qemu
> >never understood: if a node is configured to have a non-contiguous set
> >of CPUs, it tries to generate a command-line option that looks like:
> >
> >"-numa node,nodeid=...,cpus=0,2,4,mem=..."
> >                             ^^^^^
> >
> >But this format was never supported by qemu. This format is even a bit
> >weird, as "," is an option separator, and it is being used as a
> >separator _inside_ an option.
> 
> Exactly this was the reason back then to not support non-contiguous
> set of CPUs. Inside qemu there is no reason why this shouldn't work,
> it was just hard to write on the command line. So after a short
> discussion we decided to drop this for the time being. If you have a
> great idea how to specify this (I think a comma will not work,
> because it will be catched earlier), I am all ears.

Lets just use a ';' or ':' as the seperator instead ?

Daniel
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