This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


[Xen-users] 32/64 bit confusion

To: Xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] 32/64 bit confusion
From: Joe Auty <joe@xxxxxxxxxxxxxxx>
Date: Wed, 02 Jul 2008 02:18:01 -0400
Delivery-date: Tue, 01 Jul 2008 23:18:37 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Thunderbird (Macintosh/20080421)

I just discovered that the 32 bit FreeBSD works fine for me as a guest OS, but the 64 bit version doesn't. My host is a 64 bit Intel machine that supports full virt.

Does Xen support 64 bit guests? Is there any benefit to running a 64 bit guest on 64 bit hardware performance-wise, or are there bottlenecks (e.g. Xen itself not being 64 bit).

I'm debating whether KVM + 64 bit FreeBSD vs. Xen + 32 bit FreeBSD would ultimately be faster for me, or whether the difference would be negligible? I know that 64 bit does not equal faster, and my machine also doesn't have more than 4 gig of RAM, so perhaps I'm splitting hairs...

Anyone care to straighten me out? :)

Joe Auty
NetMusician: web publishing software for musicians

Xen-users mailing list

<Prev in Thread] Current Thread [Next in Thread>