From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Chmielewski Subject: Re: strange guest slowness after some time Date: Tue, 17 Mar 2009 11:47:18 +0100 Message-ID: <49BF7FB6.9080503@wpkg.org> References: <49B29705.6000904@wpkg.org> <49B4E7A6.3090601@redhat.com> <49B4EDC9.9020504@wpkg.org> <49B4EE8F.7050001@redhat.com> <49BD007C.9030809@wpkg.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" To: Avi Kivity Return-path: Received: from mx03.syneticon.net ([78.111.66.105]:52691 "EHLO mx03.syneticon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756522AbZCQKr0 (ORCPT ); Tue, 17 Mar 2009 06:47:26 -0400 In-Reply-To: <49BD007C.9030809@wpkg.org> Sender: kvm-owner@vger.kernel.org List-ID: Tomasz Chmielewski schrieb: > Avi Kivity schrieb: > >>>> I'm guessing there's a problem with timers or timer interrupts. >>>> >>>> What is the host cpu? >>> >>> 4 entries like this in /proc/cpuinfo: >>> >>> processor : 3 >>> vendor_id : AuthenticAMD >>> cpu family : 15 >>> model : 65 >>> model name : Dual-Core AMD Opteron(tm) Processor 2212 >>> >> >> That's probably the kvmclock issue that hit older AMDs. It was fixed >> in kvm-84, please try that. > > I've been running it for about a week now with kvm-84 and no guest got > slow. > > Can it be related to using cpufreq and ondemand governor? Something fishy here :( After a week or so, network in one guest got slow with kvm-84 and no cpufreq. -- Tomasz Chmielewski http://wpkg.org