From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1GN9ij-0008Ll-Dn for qemu-devel@nongnu.org; Tue, 12 Sep 2006 10:58:41 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1GN9ih-0008LJ-Td for qemu-devel@nongnu.org; Tue, 12 Sep 2006 10:58:41 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GN9ih-0008LG-OQ for qemu-devel@nongnu.org; Tue, 12 Sep 2006 10:58:39 -0400 Received: from [213.133.111.57] (helo=bugaboo.mu) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_3DES_EDE_CBC_SHA:24) (Exim 4.52) id 1GN9kD-00054H-Hp for qemu-devel@nongnu.org; Tue, 12 Sep 2006 11:00:13 -0400 Message-ID: <4506CB1C.2030109@bluegap.ch> Date: Tue, 12 Sep 2006 16:58:36 +0200 From: Markus Schiltknecht MIME-Version: 1.0 Subject: Re: [Qemu-devel] ARM CPU Speed simulated by Qemu? References: <21288277.1158072277598.JavaMail.www@wwinf1515> In-Reply-To: <21288277.1158072277598.JavaMail.www@wwinf1515> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: laurent.desnogues@wanadoo.fr, qemu-devel@nongnu.org Hi, Laurent DESNOGUES wrote: > The most complex thing to accurately simulate a modern > CPU (including ARMs) is the data cache and by far. Hm... you have to elaborate on that one. Aren't those caches like other caches, too? With well known algorithms like LRU? > In > comparison, getting accurate core pipeline simulation > is *very* easy. Simulating branch prediction seems more complex to me (probably because I'm thinking x86, not ARM). What to others think about the network and hard disk simulation I've mention in my previous post? Regards Markus