From owner-freebsd-current@FreeBSD.ORG Mon Oct 1 13:16:39 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EA64216A481 for ; Mon, 1 Oct 2007 13:16:39 +0000 (UTC) (envelope-from wvaughan@steelerubber.com) Received: from toaster.steelerubber.com (toaster.steelerubber.com [166.82.96.8]) by mx1.freebsd.org (Postfix) with ESMTP id 6D6F313C459 for ; Mon, 1 Oct 2007 13:16:39 +0000 (UTC) (envelope-from wvaughan@steelerubber.com) Received: (qmail 70108 invoked by uid 89); 1 Oct 2007 13:16:27 -0000 Received: from unknown (HELO ?166.82.96.28?) (166.82.96.28) by toaster.steelerubber.com with SMTP; 1 Oct 2007 13:16:27 -0000 Message-ID: <4700F2D1.2050707@steelerubber.com> Date: Mon, 01 Oct 2007 09:14:57 -0400 From: Walter Vaughan User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-current@freebsd.org References: <2fd864e0709302151s48adf33fwda3c908ae67b72ee@mail.gmail.com> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: various rants about 7-currnet on AMD64 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Oct 2007 13:16:40 -0000 Aryeh Friedman wrote: > I had tried PAE before the upgrade (see "what cpu type to use for a > intel duo e6850 (i386 or amd64)" in -questions for detail)... I had > also tried removing a DIMM... none resolved any issues. In My Opinion, 4 Gig is EVIL for the x86 world. This is not a FreeBSD issue as well. When I was breaking in an 8 core factory Intel box I saw same things you saw. I then installed on it's redundant backup Ubunutu. Same problems. Double the memory, FreeBSD way much happier, and Ubunutu happier as well. Actually right now I am running FreeBSD AMD64-64, and Ubunutu AMD64 7.04 on the other since they are in semi-production. Acutally we're running a vmplayer image of Freebsd 6.2 i386 as a guest on the Ubuntu box as well. Unless you have more than 4 gigs of memory, 64bit addressing is extra overhead, so pulling memory just slows things down more. So don't run more than 3 Gig if you want to run in 32 bit addressing mode. don't run less than 5 Gig if you want to run in 64 bit addressing mode.