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-devel

[Xen-devel] HD throughput

To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] HD throughput
From: Marcus Hardt <marcus.hardt@xxxxxxxxxx>
Date: Mon, 9 May 2005 18:18:32 +0200
Delivery-date: Mon, 09 May 2005 16:18:16 +0000
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Organization: Forschungszentrum Karlsruhe
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: KMail/1.7.2
Hi!

I've made some dd throughput measurements of my xen installation. My reference 
throughput is a dd on a partition very close to where my xen 
images/partitions are. I've found that the throughput of my image-backed xen 
instance is at around 93% of my reference, while the throughput of my 
partition-backed xen instance is at around 50%. 

Is there an explanation for this? I had expected it to be vice versa just like 
the xen manual itself.
-- 
Marcus

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

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