WARNING - OLD ARCHIVES

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/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

RE: [Xen-users] Poor performance running WinXP x86 hvm underCentOS5.1x64

To: "Joseph L. Casale" <jcasale@xxxxxxxxxxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Poor performance running WinXP x86 hvm underCentOS5.1x64 with xen3.1
From: "Ross S. W. Walker" <rwalker@xxxxxxxxxxxxx>
Date: Thu, 10 Apr 2008 12:21:03 -0400
Delivery-date: Thu, 10 Apr 2008 09:21:45 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
Importance: normal
In-reply-to: <1C8CF1EA1A5B5940B81B0710B2A4C93856C03FE2CC@xxxxxxxxxxxxxxxxxxxxxxx>
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/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
Priority: normal
References: <E2BB8074E5500C42984D980D4BD78EF9022A70B0@xxxxxxxxxxxxxxxxxxxxx> <1C8CF1EA1A5B5940B81B0710B2A4C93856C03FE2CC@xxxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AQHImrlyKauCUJQYdkG5twQmwYLw8o2k6E7cgAApdZKAAANmYA==
Thread-topic: [Xen-users] Poor performance running WinXP x86 hvm underCentOS5.1x64 with xen3.1
Joseph L. Casale wrote:
> > I found on some CPUs an ACPI based HVM chews up a lot of CPU time versuses
> > an APIC HVM, so in Windows I would change the computer type in device
> > manager to "Standard PC" and disable acpi in the domain config.
> > 
> > -Ross
> 
> Wow,
> Night and day! Thanks for that tip. So how does one install 
> Vista or more importantly W2008 Server on Xen and maintain 
> usable performance?

If you have a more recent motherboard/cpu combo then ACPI should
perform better, otherwise I guess you suck it up ;-)

It all depends on how good of an implementation your BIOS does
of ACPI really. I don't know which BIOSs work well and which
don't, maybe somebody else on the list has some input on this,
or a link to a site that lists the poor performing ACPI BIOSs.


-Ross

______________________________________________________________________
This e-mail, and any attachments thereto, is intended only for use by
the addressee(s) named herein and may contain legally privileged
and/or confidential information. If you are not the intended recipient
of this e-mail, you are hereby notified that any dissemination,
distribution or copying of this e-mail, and any attachments thereto,
is strictly prohibited. If you have received this e-mail in error,
please immediately notify the sender and permanently delete the
original and any copy or printout thereof.


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users