From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Andres Lagar-Cavilla" Subject: Re: lock in vhpet Date: Tue, 24 Apr 2012 18:40:29 -0700 Message-ID: <958f5bfcc3ae6a631cf7208086553dce.squirrel@webmail.lagarcavilla.org> References: <20120419082717.GA23663@ocelot.phlegethon.org> <20120423091445.GA17920@ocelot.phlegethon.org> <2a7b92d7a952c53c0fb81bdebdd45d24.squirrel@webmail.lagarcavilla.org> <20120424091646.GB34721@ocelot.phlegethon.org> Reply-To: andres@lagarcavilla.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: "Zhang, Yang Z" Cc: Keir Fraser , "xen-devel@lists.xensource.com" , Tim Deegan List-Id: xen-devel@lists.xenproject.org >> -----Original Message----- >> From: Tim Deegan [mailto:tim@xen.org] >> Sent: Tuesday, April 24, 2012 5:17 PM >> To: Zhang, Yang Z >> Cc: andres@lagarcavilla.org; xen-devel@lists.xensource.com; Keir Fraser >> Subject: Re: [Xen-devel] lock in vhpet >> >> At 08:58 +0000 on 24 Apr (1335257909), Zhang, Yang Z wrote: >> > > -----Original Message----- >> > > From: Andres Lagar-Cavilla [mailto:andres@lagarcavilla.org] >> > > Sent: Tuesday, April 24, 2012 1:19 AM >> > > >> > > Let me know if any of this helps >> > No, it not works. >> >> Do you mean that it doesn't help with the CPU overhead, or that it's >> broken in >> some other way? >> > It cannot help with the CPU overhead Yang, is there any further information you can provide? A rough idea of where vcpus are spending time spinning for the p2m lock would be tremendously useful. Thanks Andres > > best regards > yang >