From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:45025) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RNyB1-0005j0-P8 for qemu-devel@nongnu.org; Tue, 08 Nov 2011 21:46:12 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RNyB0-0004cQ-DJ for qemu-devel@nongnu.org; Tue, 08 Nov 2011 21:46:11 -0500 Received: from mail-wy0-f173.google.com ([74.125.82.173]:63607) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RNyB0-0004cM-8x for qemu-devel@nongnu.org; Tue, 08 Nov 2011 21:46:10 -0500 Received: by wyh22 with SMTP id 22so1285427wyh.4 for ; Tue, 08 Nov 2011 18:46:09 -0800 (PST) MIME-Version: 1.0 Sender: donald.open@gmail.com In-Reply-To: <20111108130835.GA20310@cs.nctu.edu.tw> References: <20111108120443.GA76806@cs.nctu.edu.tw> <20111108121056.GA96832@cs.nctu.edu.tw> <20111108130835.GA20310@cs.nctu.edu.tw> From: Dong Xu Wang Date: Wed, 9 Nov 2011 10:45:28 +0800 Message-ID: Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] multiprocessor on kvm List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: =?UTF-8?B?6Zmz6Z+L5Lu7?= Cc: Stefan Hajnoczi , qemu-devel , Xin Tong I am wondering when using -smp 16 and --enable-kvm at the same time (while the host has 4 cores), what will happen? 在 2011年11月8日 下午9:08,陳韋任 写道: >> so qemu exposes multiple processors to the guest os by having multiple >> vCPUs. and it realizes the multiple vCPUs by either using RR on a >> single host cpu (qemu ) or using multiple host cpus (kvm). > > yes. > > Regards, > chenwj > > -- > Wei-Ren Chen (陳韋任) > Computer Systems Lab, Institute of Information Science, > Academia Sinica, Taiwan (R.O.C.) > Tel:886-2-2788-3799 #1667 > > Regards Robert Wang