UML vs. vserver vs. xen

[Daniel Armstrong]

On 1/5/06, Fraser Campbell <fraser-eicrhRFjby5dCsDujFhwbypxlwaOVQ5f at public.gmane.org> wrote:
>
> Vservers is a different approach to virtualization also a neat
> technology.  Down the road I wouldn't be surprised if a combination of
> Xen + vservers might even come into play.  Another solution similar to
> vservers is OpenVZ from SW Soft.  The "open" part is a very recent
> development though their commercial product (Virtuozzo) has been around
> for a long time.
>
> I haven't seen the issues that Adam mentioned with Xen.  I have done a
> lot of benchmarking between Xen Linux, native Linux and Linux on VMWare
> ESX.  Xen Linux performance is very good, close to native as advertised.
>   My benchmarking has only gone up to 4 VMs so far but the degradation
> in peformance was not significant and definitely not noticeable to the
> point where the console slowed down. My initial benchmarking was on 2
> way servers with 4GB RAM, we're just starting to look at 4 way servers
> with 8GB of RAM as of today ;-)
>
> If you haven't tried the Xen Demo CD you should take a look, worked like
> a charm on my laptop ... 3 operating systems running with full graphical
> desktop (via VNC) and flawless networking in 512 MB of RAM from a live CD.

Thank-you Adam and Fraser for the feedback. The Xen +  vserver
combination is an interesting idea - right now I am downloading the
torrent of that Xen Demo CD you mention, and will give it a go.

8GB of RAM. Wow! Sweet.
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