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] Xenoprof and the hypervisor

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Xenoprof and the hypervisor
From: "David Carr" <dc@xxxxxxxxx>
Date: Tue, 23 May 2006 16:11:33 -0500 (CDT)
Delivery-date: Tue, 23 May 2006 14:54:17 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
Importance: Normal
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>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: SquirrelMail/1.4.4
Thanks in part to Jose's help I've gotten oprofile working on multiple
domains with unstable.  After reading the original Xenoprof paper, I have
a question about how hypervisor samples are handled.  If my understanding
is correct, all samples pass through the hypervisor where they are then
dispatched to the profiler in the corresponding domain.  This makes sense
in the case where code running in a given domain makes a hypercall. 
However, what happens when a hardware interrupt triggers code execution in
the hypervisor?  Where do such samples end up getting dispatched to and
recorded?

Thanks,
David Carr


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

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