From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:58908) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UgLpd-0003ef-FT for qemu-devel@nongnu.org; Sat, 25 May 2013 17:16:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UgLpc-0007cG-9e for qemu-devel@nongnu.org; Sat, 25 May 2013 17:16:53 -0400 Received: from mail-ee0-f42.google.com ([74.125.83.42]:54350) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UgLpc-0007c6-3I for qemu-devel@nongnu.org; Sat, 25 May 2013 17:16:52 -0400 Received: by mail-ee0-f42.google.com with SMTP id c50so3274277eek.15 for ; Sat, 25 May 2013 14:16:51 -0700 (PDT) Sender: Paolo Bonzini Message-ID: <51A12A39.5050008@redhat.com> Date: Sat, 25 May 2013 23:16:41 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <51A10BCA.6000800@suse.de> In-Reply-To: <51A10BCA.6000800@suse.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: Re: [Qemu-devel] Potential to accelerate QEMU for specific architectures List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: =?UTF-8?B?QW5kcmVhcyBGw6RyYmVy?= Cc: Lior Vernia , qemu-devel@nongnu.org, =?UTF-8?B?6Zmz6Z+L5Lu7?= , Richard Henderson Il 25/05/2013 21:06, Andreas Färber ha scritto: > Hi, > > Am 24.05.2013 21:24, schrieb Lior Vernia: >> I am running x86 applications on an ARM device using QEMU, and found >> it too slow for my needs. > > Before we start going into technical details, what are you trying to > achieve on a high level and how did you try to do it? > > Are you using qemu-system-x86_64 or qemu-x86_64? The latest v1.5.0? In either case, one problem would be the 64-bit operations. qemu-system-i386 and qemu-i386 would probably be a bit faster, if you are running 32-bit only. Paolo