Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 2 Dec 2002 11:54:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 2 Dec 2002 11:54:22 -0500 Received: from harpo.it.uu.se ([130.238.12.34]:38848 "EHLO harpo.it.uu.se") by vger.kernel.org with ESMTP id ; Mon, 2 Dec 2002 11:54:21 -0500 From: Mikael Pettersson MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15851.37371.861619.967258@harpo.it.uu.se> Date: Mon, 2 Dec 2002 18:01:47 +0100 To: Jakub Jelinek Cc: Andi Kleen , "David S. Miller" , linux-kernel@vger.kernel.org Subject: Re: [PATCH] Start of compat32.h (again) In-Reply-To: <20021202043645.Q27455@devserv.devel.redhat.com> References: <1038804400.4411.4.camel@rth.ninka.net.suse.lists.linux.kernel> <20021202.002815.58826951.davem@redhat.com> <20021202090756.GA26034@wotan.suse.de> <20021202043645.Q27455@devserv.devel.redhat.com> X-Mailer: VM 6.90 under Emacs 20.7.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 749 Lines: 17 Jakub Jelinek writes: > The fastest model on x86-64 would IMHO be a 32-bit model using all > registers, rip relative addressing and register passing conventions > (ie. a 3rd ABI). When not doing Linux hacks I work on compilers and runtime systems, and I agree that a model with x86_64 native mode enabled (and thus the extra registers and addressing modes) but still in a 32-bit address space looks like a very interesting option for those applications that don't need tons of address space. /Mikael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/