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Re: [Xen-devel] Xen domU support merged into upstream Linux

To: jan.oravec@xxxxxxx
Subject: Re: [Xen-devel] Xen domU support merged into upstream Linux
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Mon, 30 Jul 2007 09:14:30 -0700
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Mark Williamson <mark.williamson@xxxxxxxxxxxx>
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Jan Oravec wrote:
> I tend to believe there are more pre-HVM 64-bit guests than 32-bit
> guests. 64-bit CPUs are mainstream for a few years and 32-bit-only
> server systems are getting old. Almost everyone I know with 64-bit CPUs
> prefers to run 64-bit Linux over 32-bit.
>
> So, I think it is worth to support pre-HVM 64-bit guests.

Well, traditionally 64-bit guests have suffered a particularly steep
performance hit under Xen, so I suspect that a lot of people with 64-bit
hosts are still tending to use 32-bit guests.  But I'm just handwaving
really.

    J

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