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

[Top] [All Lists]
<prev [Date] next>
[Advanced]
 <prev [Thread] next>

Re: [Xen-devel] Re: [PATCH]Further release shadow lock overhead

from [Tim Deegan] [Permanent Link][Original]
To: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Subject: Re: [Xen-devel] Re: [PATCH]Further release shadow lock overhead
From: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Date: Wed, 23 Jan 2008 09:59:39 +0000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Wed, 23 Jan 2008 02:00:53 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <D470B4E54465E3469E2ABBC5AFAC390F024D8EA4@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
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>
References: <20080122145225.GA22655@xxxxxxxxxxxxxxxxxxxxx> <D470B4E54465E3469E2ABBC5AFAC390F024D8EA4@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.5.13 (2006-08-11) 
At 23:26 +0800 on 22 Jan (1201044364), Tian, Kevin wrote:
> At this time, it's natural to ask how about just releasing the lock before
> the point updating guest entry.

If you mean taking the lock just before the memcpy()/cmpxchg(), it
sounds plausible. 

Cheers,

Tim.

-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Citrix Systems (R&D) Ltd.
[Company #02300071, SL9 0DZ, UK.]

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
[More with this subject...]
<Prev in Thread] Current Thread [Next in Thread>
Previous by Date:  Re: [Xen-devel][PATCH]Provide 3 times continously writes check and unshadow the guest page, Tim Deegan
Next by Date:  RE: [Xen-devel] Re: [PATCH]Further release shadow lock overhead, Tian, Kevin
Previous by Thread:  RE: [Xen-devel] Re: [PATCH]Further release shadow lock overhead, Tian, Kevin
Next by Thread:  RE: [Xen-devel] Re: [PATCH]Further release shadow lock overhead, Tian, Kevin
Indexes:  [Date] [Thread] [Top] [All Lists]
 
   

Copyright , Citrix Systems Inc. All rights reserved. Legal and Privacy