Subject: Re: [vserver] Pros and Cons of 32/64bit guests on 64bit host
From: Stephen Liu <satimis@yahoo.com>
Date: Fri, 22 Aug 2008 21:37:23 +0800 (CST)

Hi Nicolas,


Thanks for your advice.


--- Nicolas Cadou <ncadou@cobi.net> wrote:

> >  Please explain in more detail.  On installing the software of
> virtual
> >  machine they don't request alloting XYZ MB RAM.
> 
> Since it is a virtual *machine*, you must define its characteristics,
> like how 
> much RAM, how many CPUs, etc...


I did it on creating guests


> With KVM you can overcommit, as with others I believe, ie for you 8GB
> machine 
> you can have 4 VMs with 4GB each; physical RAM will get used
> according to 
> each VM's usage.


Sorry I don't follow.  If 4 VMs (not KVM/QEMU) with 4G each then I need
16G RAM at least.


- snip -
 
> I would have preferred to run the vservers directly on the host, but
> there is 
> no official Linux-VServer enabled kernel in Ubuntu Hardy, and I don't
> need 
> the maintenance overhead of having to recompile a kernel every now
> and then, 
> so KVM it is for now.


Is there an item in Ubuntu Hardy kernel for enabling Linux-VServer to
rebuilt the kernel?


B.R.
Stephen

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