The Dom0 has direct access to hardware, so in general IO operations should be 
faster (better latency). DomUs access to hardware is provided by hypervisor 
using Dom0 - so the bits have "longer" way to roam out of the VM to real 
hardware. 
-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of forwebonly@xxxxxx
Sent: Wednesday, March 31, 2010 11:32 AM
To: balwant singh; Javier Guerra Giraldez
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] bare metal xen hypervisor
Javier Guerra Giraldez wrote:
>Dom0 is in fact as much a VM as any other one running on the machine;
>the only differences are:
That´s a new information for me.
Does that mean that the performance of processes in Dom0 ist not better or 
worse than those in any DomU?
I thought that Dom0 processes have a better latency and general performance 
compares to those in a DomU.

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