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Re: [Xen-users] Xen opinions?

To: "Gary W. Smith" <gary@xxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] Xen opinions?
From: "Guido Barosio" <gbarosio@xxxxxxxxx>
Date: Sat, 10 Feb 2007 15:21:23 -0300
Cc: xen-users@xxxxxxxxxxxxxxxxxxx, Tony Angerame <aga1@xxxxxxxxxxxxxx>
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  Are this webservers serving static content (apache) or are they
running any sort of application (tomcat/jboss) ?

  Can you describe your servers configuration, just to get a picture?
We are getting some initial benchmarks, but I would apreciate external
input on this one.

 Thanks in advance,
Guido Barosio

On 2/9/07, Gary W. Smith <gary@xxxxxxxxxxxxxxx> wrote:
> Hello Xen group. I'm new to the list but so far I have had excellent
> response to my questions. Thank you! May I pose one general question
> the group? I am evaluating Xen Para Virtualization for use at our
> How do you feel about it's: reliability, usability, utility? Is it a
> quality piece of software? Would you recommend it? Is it mature enough
> for a production environment? Does it perform well?

We have been using paravirtualized guests for some time under rPath and
they work great.  I have had mixed results with different guests under
FC6 but using a different Dom0 I have had pretty good success.

My only suggestion is that if you have a distro combo that is working
well for you, stick with it for THAT version of Xen that you are using.

Overall, it performs fairly well.  We use tap:aio (file) based images
and we get a little performance hit with but overall we are getting
better allocation of CPU time that if we didn't have virtualization.  We
have two instances on (on two separate boxes) that act as web servers
that serve ~1.5M web hits per day (each).  They seem to do just fine.


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Guido Barosio

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