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RE: [Xen-users] CPU reccomendation?

To: "MJang" <mike@xxxxxxxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] CPU reccomendation?
From: "Petersson, Mats" <Mats.Petersson@xxxxxxx>
Date: Wed, 20 Sep 2006 18:44:42 +0200
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Thread-topic: [Xen-users] CPU reccomendation?

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of MJang
> Sent: 20 September 2006 17:37
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] CPU reccomendation?
> On Wed, 2006-09-20 at 12:26 -0400, Tod Detre wrote:
> > Hash: SHA1
> > 
> > Hi, I'm new to the list. Please forgive me if this has been 
> discussed
> > recently.
> > 
> > I'm looking at buying a server for at home and I'm looking 
> for advice on
> > which cpu to base it on. I will want to put a lot of vm's on this
> > server, but the load will probably not be very high. Most 
> of the VM's
> > will be linux, but I love to try out OS's so I may try any 
> OS that has
> > an x86 port (including windows). The server I put together 
> will probably
> > be 1 socket, but have a dual core chip.
> I'm just starting to experiment with a T7200 dual core. As 
> you research,
> make sure that the motherboard and BIOS also support virtualization.
> Lots of reports of disappointed folks where VT (or the AMD equivalent)
> has been disabled in one or the other, even with a VT CPU.

Ah, yes, that's one place where AMD and Intel are different. At the
moment, there's no way to disable the AMD-V technology in the processors
that have this feature. So if you just get the processors that support
AMD-V, there's no way that it would not be available to you, and it's
relatively easy to determine which processors have this feature, as they
are the ones in "the new socket" with DDR2 support - so as long as you
get information from the supplier which socket the processor is for, you
should be able to determine whether it has AMD-V or not. 


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