From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chegu Vinod Subject: Re: Large sized guest taking for ever to boot... Date: Tue, 12 Jun 2012 11:44:07 -0700 Message-ID: <4FD78DF7.5020006@hp.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> <20120612153933.GB4206@redhat.com> Reply-To: chegu_vinod@hp.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Jan Kiszka , Alex Williamson , "kvm@vger.kernel.org" , qemu-devel To: Gleb Natapov Return-path: Received: from g6t0184.atlanta.hp.com ([15.193.32.61]:48674 "EHLO g6t0184.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752179Ab2FLSoJ (ORCPT ); Tue, 12 Jun 2012 14:44:09 -0400 In-Reply-To: <20120612153933.GB4206@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 6/12/2012 8:39 AM, Gleb Natapov wrote: > 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. I tried that and didn't make any difference...i.e. the RHEL6.3 RC1 guest booted in about ~1 min. Vinod > > -- > Gleb. >