From owner-freebsd-hackers@FreeBSD.ORG Mon Jun 29 00:35:19 2009 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DD285106567D for ; Mon, 29 Jun 2009 00:35:19 +0000 (UTC) (envelope-from joerg@britannica.bec.de) Received: from www.sonnenberger.org (www.ostsee-abc.de [62.206.222.50]) by mx1.freebsd.org (Postfix) with ESMTP id 99D208FC08 for ; Mon, 29 Jun 2009 00:35:19 +0000 (UTC) (envelope-from joerg@britannica.bec.de) Received: from britannica.bec.de (www.sonnenberger.org [192.168.1.10]) by www.sonnenberger.org (Postfix) with ESMTP id 72A8866797 for ; Mon, 29 Jun 2009 02:35:17 +0200 (CEST) Received: by britannica.bec.de (Postfix, from userid 1000) id 2C21B1BD949; Mon, 29 Jun 2009 02:35:23 +0200 (CEST) Date: Mon, 29 Jun 2009 02:35:22 +0200 From: Joerg Sonnenberger To: freebsd-hackers@freebsd.org Message-ID: <20090629003522.GA18543@britannica.bec.de> Mail-Followup-To: freebsd-hackers@freebsd.org References: <4A480760.50705@hoyletech.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4A480760.50705@hoyletech.com> User-Agent: Mutt/1.5.19 (2009-01-05) Subject: Re: large pages (amd64) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Jun 2009 00:35:20 -0000 On Sun, Jun 28, 2009 at 08:14:24PM -0400, Nathanael Hoyle wrote: > Just to be clear, since you say i386 (I presume you mean architecture), > I believe the Physical Address Extensions which allowed 2MB Page Size > bit to be set was introduced with Pentium Pro. Processors prior to this > were limited to standard 4KB pages. PSE != PAE != PSE36. Pentium Pro sounds about right though. Joerg