From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: Windows slow boot: contractor wanted Date: Thu, 16 Aug 2012 14:39:57 +0300 Message-ID: <502CDC0D.9080004@redhat.com> References: <20120816104727.GA17166@alpha.arachsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org To: Richard Davies Return-path: Received: from mx1.redhat.com ([209.132.183.28]:37603 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751475Ab2HPLkI (ORCPT ); Thu, 16 Aug 2012 07:40:08 -0400 In-Reply-To: <20120816104727.GA17166@alpha.arachsys.com> Sender: kvm-owner@vger.kernel.org List-ID: On 08/16/2012 01:47 PM, Richard Davies wrote: > Hi, > > We run a cloud hosting provider using qemu-kvm 1.1, and are keen to find a > contractor to track down and fix problems we have with large memory Windows > guests booting very slowly - they can take several hours. > > We previously reported these problems in July (copied below) and they are > still present with Linux kernel 3.5.1 and qemu-kvm 1.1.1. > > This is a serious issue for us which is causing significant pain to our > larger Windows VM customers when their servers are offline for many hours > during boot. > > If anyone knowledgeable in the area would be interested in being paid to > work on this, or if you know someone who might be, I would be delighted to > hear from you. > I happen to be gainfully employed but maybe I can help. Can you collect a trace during the slow boot period and post in somewhere? See http://www.linux-kvm.org/page/Tracing for instructions. 4G/8way is not a particularly large guest. What is the host configuration (memory, core count)? -- error compiling committee.c: too many arguments to function