From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=54209 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OgHPD-0004Qf-9v for qemu-devel@nongnu.org; Tue, 03 Aug 2010 09:19:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OgHPC-0006ok-6Y for qemu-devel@nongnu.org; Tue, 03 Aug 2010 09:19:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:8577) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OgHPB-0006oT-QC for qemu-devel@nongnu.org; Tue, 03 Aug 2010 09:19:42 -0400 Message-ID: <4C58176B.2050306@redhat.com> Date: Tue, 03 Aug 2010 16:19:39 +0300 From: Avi Kivity MIME-Version: 1.0 Subject: Re: [Qemu-devel] Anyone seeing huge slowdown launching qemu with Linux 2.6.35? 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> In-Reply-To: <20100803124808.GW13789@amd.home.annexia.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Richard W.M. Jones" Cc: qemu-devel@nongnu.org, Gleb Natapov , kvm@vger.kernel.org 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