From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Chmielewski Subject: Re: strange guest slowness after some time Date: Tue, 16 Jun 2009 16:26:41 +0200 Message-ID: <4A37ABA1.4040202@wpkg.org> References: <49B29705.6000904@wpkg.org> <49B4E7A6.3090601@redhat.com> <49B4EDC9.9020504@wpkg.org> <49B4EE8F.7050001@redhat.com> <49BD007C.9030809@wpkg.org> <49BF7FB6.9080503@wpkg.org> <49BF8686.5050707@redhat.com> <49BF88BE.7040805@wpkg.org> <49BFC276.1080600@gmx.net> <49BFC53D.3020809@wpkg.org> <49BFD752.9050706@gmx.net> <49BFDFFC.4030005@wpkg.org> <4A2CEFB2.704@gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: avi@redhat.com, kvm@vger.kernel.org To: Felix Leimbach Return-path: Received: from mx03.syneticon.net ([78.111.66.105]:58545 "EHLO mx03.syneticon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753074AbZFPO0O (ORCPT ); Tue, 16 Jun 2009 10:26:14 -0400 In-Reply-To: <4A2CEFB2.704@gmx.net> Sender: kvm-owner@vger.kernel.org List-ID: Felix Leimbach wrote: >> It's exactly the same CPU I have. > Interesting: Since two months I'm running on 2 Shanghai Quad-Cores > instead and the problem is definitely gone. > The rest of the hardware as well as the whole software-stack remained > unchanged. > > That should confirm what we assumed already. For me, it turned out that KVM I was running (coming with Proxmox VE) had a "fairsched" patch (OpenVZ-related) which caused this broken behaviour. -- Tomasz Chmielewski http://wpkg.org