From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: Re: Large sized guest taking for ever to boot... Date: Tue, 12 Jun 2012 18:39:35 +0300 Message-ID: <20120612153933.GB4206@redhat.com> References: <1339173966.26976.95.camel@ul30vt> <4FD23221.5090208@hp.com> <1339177340.26976.111.camel@ul30vt> <4FD23CF9.5000203@hp.com> <4FD23FA0.6060202@siemens.com> <4FD24285.1060702@hp.com> <4FD2467B.1080005@siemens.com> <4FD76167.4080705@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Jan Kiszka , Alex Williamson , "kvm@vger.kernel.org" , qemu-devel To: Chegu Vinod Return-path: Received: from mx1.redhat.com ([209.132.183.28]:63868 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753014Ab2FLPjn (ORCPT ); Tue, 12 Jun 2012 11:39:43 -0400 Content-Disposition: inline In-Reply-To: <4FD76167.4080705@hp.com> Sender: kvm-owner@vger.kernel.org List-ID: On Tue, Jun 12, 2012 at 08:33:59AM -0700, Chegu Vinod wrote: > I rebuilt the 3.4.1 kernel in the guest from scratch and retried my > experiments and measured > the boot times... > > a) Host : RHEL6.3 RC1 + qemu-kvm (that came with it) & Guest : > RHEL6.3 RC1: ~1 min > > b) Host :3.4.1 + qemu-kvm.git & Guest : RHEL6.3RC1 - ~1 min > > c) Host :3.4.1 + qemu-kvm.git & Guest : 3.4.1 - ~10 mins > > d) Host :3.4.1 + qemu.git & Guest : RHEL6.3 RC1 - ~1 min > > e) Host :3.4.1 + qemu.git & Guest : 3.4.1 - ~14 mins > > > In both the case (c) & (e) had quite a few warning/error messages > from udevd. > > FYI.. > Vinod > PS: Haven't had the time to do any further analysis...as the > machine is being used for > other experiments... > > Next time you get the machine can you try running (b) but adding -hypervisor to your -cpu config. -- Gleb.