From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NZmsp-00023M-AJ for qemu-devel@nongnu.org; Tue, 26 Jan 2010 09:59:11 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NZmsk-0001yi-LR for qemu-devel@nongnu.org; Tue, 26 Jan 2010 09:59:10 -0500 Received: from [199.232.76.173] (port=57021 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NZmsk-0001yW-AQ for qemu-devel@nongnu.org; Tue, 26 Jan 2010 09:59:06 -0500 Received: from mail-yx0-f188.google.com ([209.85.210.188]:36606) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1NZmsj-0005JB-TZ for qemu-devel@nongnu.org; Tue, 26 Jan 2010 09:59:06 -0500 Received: by yxe26 with SMTP id 26so3857770yxe.4 for ; Tue, 26 Jan 2010 06:59:05 -0800 (PST) Message-ID: <4B5F0336.7030204@codemonkey.ws> Date: Tue, 26 Jan 2010 08:59:02 -0600 From: Anthony Liguori MIME-Version: 1.0 References: <20100126064902.GD25779@x200.localdomain> <03EA8701-C607-4B87-A6C6-1DCD3E5DCAAC@suse.de> <4B5EE9EF.6030904@codemonkey.ws> <197BDDDF-D808-4157-8270-42B72B99BE0D@suse.de> <4B5EED22.4080009@redhat.com> <4B5EF874.3080306@codemonkey.ws> <4B5EF903.1070508@redhat.com> <4B5EFAB6.4080102@codemonkey.ws> <4B5EFB7A.7010709@redhat.com> <4B5EFD18.1030008@codemonkey.ws> <4B5EFE13.1070300@redhat.com> <27124E66-3A8C-4255-B1E1-B0889D6187AC@suse.de> <4B5F0099.9060909@redhat.com> <2D8DB108-5885-4156-AC83-D9E91075861B@suse.de> In-Reply-To: <2D8DB108-5885-4156-AC83-D9E91075861B@suse.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] Re: KVM call agenda for Jan 26 List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alexander Graf Cc: Chris Wright , Avi Kivity , kvm@vger.kernel.org, qemu-devel@nongnu.org On 01/26/2010 08:50 AM, Alexander Graf wrote: > On 26.01.2010, at 15:47, Avi Kivity wrote: > > >> On 01/26/2010 04:42 PM, Alexander Graf wrote: >> >>> >>>> That's /proc/cpuinfo, we should just extend it, maybe that's what Alex meant, but I'd like to see something more capable. >>>> >>>> >>> I think we're all looking at different use-cases. >>> >>> First and frontmost the one type of user I'm concerned with in this case is a mortal end-user who doesn't know that much about virtualization details and doesn't care what NPT is. He just wants to have a VM running and wants to know how well it'll work. >>> >>> >> It really depends on what he does with it. 3D gaming? might have a different experience from the always exciting kernel builds. >> > Well, we can give an estimation (based on previous measurements) for certain subsystems. Like I proposed in the original mail, we can actually give users information about virtual CPU speed. > The problem with making an unqualified statement about something like "virtual CPU speed" is that if a user runs a random benchmark, and gets less than XX%, they'll consider it a bug and be unhappy. I'm very reluctant to take anything in QEMU that makes promises about virtualization performance. It's a bad idea IMHO. > With SPICE hopefully merged one day we also could give some estimates on 3D performance. > Spice doesn't support 3D today. Regards, Anthony Liguori > Alex