From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: Backport requests of cs 23420..23423 for 4.0 and 4.1 Date: Fri, 13 Jul 2012 11:07:14 +0100 Message-ID: <4FFFF352.3030405@citrix.com> References: <4FFFE9E1.4000605@ts.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4FFFE9E1.4000605@ts.fujitsu.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: Juergen Gross Cc: George Dunlap , Keir Fraser , Ian Jackson , xen-devel List-Id: xen-devel@lists.xenproject.org On 13/07/12 10:26, Juergen Gross wrote: > Am 13.07.2012 10:05, schrieb Keir Fraser: >> On 13/07/2012 07:08, "Juergen Gross" wrote: >> >>> Hi, >>> >>> we are experiencing significant performance degradation after live migration >>> of >>> hvm domains in Xen 4.0 (SLES11 SP1): after live migration the performance is >>> dropping to less than 90%. I did a backport of cs 23420-23423 and the >>> performance is okay now. >>> >>> I would like to request to include these changesets in 4.0 and 4.1. The >>> backport is quite trivial, I can send patches if you are willing to take them. >> Will need an Ack from George and then patches applied by (or at least an Ack >> from) a tools maintainer. > Okay, I'll send the patches for 4.1 and 4.0 and George can Ack or Nack them. > > > Thanks, Juergen > For what it is worth, XenServer have had these patches (the pre-upstreamed versions) in all Xen-4.x releases we have done. We even had a customer support escalation and backported them to our last Xen-3.4 release. -- Andrew Cooper - Dom0 Kernel Engineer, Citrix XenServer T: +44 (0)1223 225 900, http://www.citrix.com