[CentOS-virt] Virtualisation, guests cached memory and density
Nux!
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.
--
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Nux!
www.nux.ro
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