[Xen-users] Re: Q: NUMA and XEN

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Ryan is currently working on NUMA support.  He can probably give a 
better idea of the sort of things we'll be supporting.
Regards,

Anthony Liguori

Ulrich Windl wrote:
> Hi,
>
> I have a simple question, that's maybe an FAQ: The XEN hypervisor only reports one 
> zonelist during boot, while a normal kernel will report two for a two-node NUMA 
> machine. Now I'm wondering if I create two VMs with roughly half of the RAM 
> (amount one node has), will XEN be clever or dumb when assigning RAM to those VMs?
> XEN will be clever if it takes the RAM from one node, preferrably that where the 
> assigned CPU is, and it will be dumb if it assigns just any RAM, causing a 
> slowdown of RAM access.
> Regards,
> Ulrich

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