From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Vrabel Subject: Re: [PATCHv11 4/4] gnttab: use per-VCPU maptrack free lists Date: Wed, 3 Jun 2015 10:00:08 +0100 Message-ID: <556EC218.8090808@citrix.com> References: <1433262381-8965-1-git-send-email-david.vrabel@citrix.com> <1433262381-8965-5-git-send-email-david.vrabel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1Z04X1-0007FA-5v for xen-devel@lists.xenproject.org; Wed, 03 Jun 2015 09:00:15 +0000 In-Reply-To: <1433262381-8965-5-git-send-email-david.vrabel@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: David Vrabel , xen-devel@lists.xenproject.org Cc: Tim Deegan , Malcolm Crossley , Keir Fraser , Ian Campbell , Jan Beulich List-Id: xen-devel@lists.xenproject.org On 02/06/15 17:26, David Vrabel wrote: > Performance analysis of aggregate network throughput with many VMs > shows that performance is signficantly limited by contention on the > maptrack lock when obtaining/releasing maptrack handles from the free > list. Sometime during all this refactoring, I dropped the authorship of this patch. Please ensure this is From: Malcolm Crossley Thanks. David