Subject: Re: [vserver] Pros and Cons of 32/64bit guests on 64bit host
From: Stephen Liu <satimis@yahoo.com>
Date: Fri, 22 Aug 2008 22:35:29 +0800 (CST)

Hi Nicolas,


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

- snip -

> Not necessarily. Even if a VM is configured as a 4GB machine, the
> full 4GB is 
> not always used. Right after boot, for example a Windows VM should
> consume 
> less than 10% of that. The remaining of the RAM is not, then,
> allocated on 
> the host either. That's why the ability to overcommit is interesting.
> 
> Overcommiting means allowing the allocation of more memory than
> physically 
> available.


I got it now.  Thanks


Other advice noted and thanks


B.R.
Stephen L

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