[CentOS-virt] Virtualisation, guests cached memory and density


nux at li.nux.ro
Fri Feb 8 12:18:23 UTC 2013

On 08.02.2013 12:13, Karanbir Singh wrote:
> Hey
> On 02/08/2013 12:04 PM, Nux! wrote:
>>> Xen, because of the way it works, will always get to higher density 
>>> /
>>> performance than KVM when desity and reasonable performance are on 
>>> the
>>> plate.
>> Does this apply to HVM or just paravirt? I would need HVM (need to 
>> run
>> freebsd).
> KSM will only work with KVM guests.. however Xen as something called
> Tmem that ultimately targets similar goals and works for pv guests
> as-is, but needs a Tmem capable kernel in the HVM guest, if they are 
> to
> use it as well.

And FreeBSD doesn't look like it has it ... Thanks for the tip though, 
very handy.

Sent from the Delta quadrant using Borg technology!


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