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

[Xen-users] Performance difference between a "partition image file" and

To: Xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Performance difference between a "partition image file" and a compressed file system
From: Kevin McKeon <kevin.w.mckeon@xxxxxxxxx>
Date: Fri, 27 Mar 2009 12:49:19 -0400
Cc:
Delivery-date: Fri, 27 Mar 2009 09:50:00 -0700
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=Hn+8qlPi8S335ctabUIq1qru+4KxOy6nX/caJITHIQM=; b=VH2Kw/HoSg5aEM5ytwfKIyBgZTg1gxyTBxWS9JTHbpYtFj8rVAgLsXKonCAEqcHu+C weORm2rHkYw4/l9G9/ZpJkrydHEFkm52Ul1lhbdxbozqN4xjHjJ4zkXeFbAglZbvcAq+ MzHFzjDCNefE/swSfmK/scUpOcQmsJ8CSPLZg=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=NAx0yz4FgbW3/XLrHPlHgWp7QoYwpPJSy7AnRqK32VTfFWGzM0M2OOFYUXz3xjga0g EnyGR581A/9gku7zNW9jMmZ7AarYKQkJ8yWQvs/VuLaxtnWwHyvZDdhItAbBWMUzrr8N Eh4HkFr/qPJyWgOaAj/4c/z1Sxe5wpb8i6W8I=
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
Does anyone know how significant the performance hit is when using a partition image file for the file system of a domU instance as opposed to using a file system on a separate disk?
 
For example:
 
disk =['tap:aio:/xen/images/mydomU_partition.img,xvda1,w']
vs
disk =['phy:hda1,xvda1,w']
 
I realize the second config would be faster, but will the first one work pretty well? Does anyone know of any performance papers written on this subject?
 
Cheers,
Kevin
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
<Prev in Thread] Current Thread [Next in Thread>