Re: [Xen-users] HVM or not HVM?

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> In a VPS environment (a dom0 which hosts some domU used as VPS by some
> customers, and you don't know what customers do with the domUs), do
> you think it is better to use HVM domU or non-HVM domUs?

HVM will give you greater flexibility in terms of what guest OSes you can 
offer to customers (e.g. non-Linux, maybe older Linux, etc).

PV should achieve better per-guest performance, and therefore let you run more 
doms on a physical server whilst still maintaining decent performance 
overall.

If you offer HVM Linux, you can still use PV drivers in it.  I think there 
might be PV drivers available for Linux 2.4 guests, even.

If you really want flexibility (albeit at the cost of added admin work) then 
you could offer a selection of options, depending on the customer.

Cheers,
Mark

-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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