From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1GSIol-00050u-Ol for qemu-devel@nongnu.org; Tue, 26 Sep 2006 15:42:11 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1GSIoj-00050d-5c for qemu-devel@nongnu.org; Tue, 26 Sep 2006 15:42:10 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GSIoi-00050a-Vs for qemu-devel@nongnu.org; Tue, 26 Sep 2006 15:42:09 -0400 Received: from [68.230.240.34] (helo=eastrmmtao05.cox.net) by monty-python.gnu.org with esmtp (Exim 4.52) id 1GSItP-0005L6-1w for qemu-devel@nongnu.org; Tue, 26 Sep 2006 15:47:00 -0400 Message-ID: <29036817.1159299723859.JavaMail.root@eastrmwml06.mgt.cox.net> Date: Tue, 26 Sep 2006 15:42:03 -0400 From: Ben Taylor Subject: Re: [Qemu-devel] A question about QEMU performance MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Reply-To: sol10x86@cox.net, qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org ---- Alessandro Corradi wrote: > Hi all, > This is my question: > If I run qemu for i386 without kqemu it uses soft-mmu, so it operates as > another architetture as ppc or mips right? > So... are the performace of qemu the same if I use i386 or mips or something > change deeply? > Example: if I run the same program on i386 emulation without kqemu or on > mips are the performance circa the same? Would you expect qemu to perform the same on an AMD 4600X2 as a 400 Mhz MIPS? It's probably all relative to the speed of the cpu, host OS, compiler optimizations and trans cpu data transforms, as to how well the emulated system performs.