From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [Qemu-devel] Anyone seeing huge slowdown launching qemu with Linux 2.6.35? Date: Tue, 03 Aug 2010 16:19:39 +0300 Message-ID: <4C58176B.2050306@redhat.com> References: <20100803111306.GA21886@amd.home.annexia.org> <20100803113302.GT24773@redhat.com> <20100803121000.GV13789@amd.home.annexia.org> <20100803123714.GU24773@redhat.com> <20100803124808.GW13789@amd.home.annexia.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Gleb Natapov , qemu-devel@nongnu.org, kvm@vger.kernel.org To: "Richard W.M. Jones" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:36382 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755555Ab0HCNTm (ORCPT ); Tue, 3 Aug 2010 09:19:42 -0400 In-Reply-To: <20100803124808.GW13789@amd.home.annexia.org> Sender: kvm-owner@vger.kernel.org List-ID: On 08/03/2010 03:48 PM, Richard W.M. Jones wrote: > > Thanks for the explanation. I'll repost my "DMA"-like fw-cfg patch > once I've rebased it and done some more testing. This huge regression > for a common operation (implementing -initrd) needs to be solved > without using inb/rep ins. Adding more interfaces is easy but a problem in the long term. We'll optimize it as much as we can. Meanwhile, why are you loading huge initrds? Use a cdrom instead (it will also be faster since the guest doesn't need to unpack it). -- error compiling committee.c: too many arguments to function