From owner-freebsd-stable@FreeBSD.ORG Sun Aug 14 05:52:27 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3E3C916A41F for ; Sun, 14 Aug 2005 05:52:27 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (vc4-2-0-87.dsl.netrack.net [199.45.160.85]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9B27843D55 for ; Sun, 14 Aug 2005 05:52:26 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (localhost.village.org [127.0.0.1] (may be forged)) by harmony.bsdimp.com (8.13.3/8.13.3) with ESMTP id j7E5qBbq018260; Sat, 13 Aug 2005 23:52:12 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Sat, 13 Aug 2005 23:52:23 -0600 (MDT) Message-Id: <20050813.235223.38050560.imp@bsdimp.com> To: chris@childeric.freeserve.co.uk From: "M. Warner Losh" In-Reply-To: <42FD08D3.2080300@childeric.freeserve.co.uk> References: <42FD08D3.2080300@childeric.freeserve.co.uk> X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0 (harmony.bsdimp.com [127.0.0.1]); Sat, 13 Aug 2005 23:52:12 -0600 (MDT) Cc: freebsd-stable@freebsd.org Subject: Re: Memory requirements between releases X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 14 Aug 2005 05:52:27 -0000 In message: <42FD08D3.2080300@childeric.freeserve.co.uk> Chris writes: : The installation notes for 5.4 and 6 (the floppies README.TXT) say : "FreeBSD for the i386 requires ...at least 24 MB of RAM". : : Did the memory requirement really jump that much or is something : different being measured? Not really, if you know what you are doing. : I have on old tosh 110CT laptop with 24mb memory I want to set up as a : wireless router/NAT box but would prefer to use 6 or 5.4. Can I reduce : the amount of memory required? I have compiled a reduced kernel but it : swaps like mad when compiling. Kismet and deps took over 12 hours. Just : after boot and not doing anything it has about 2mb free and 17 processes : running. You can deploy to one of these laptops, but chances are good that the extra memory required for large compiles (anything bigger than hello world) will swap its little brains out. You can trim the kernel down a lot for the 100CT. You can eliminate all the SCSI stuff, all the raid stuff, most of the pci stuff, all the old crusty ISA ethernet hardware. You can trim down usb quite a bit, eliminate eisa. That helps a lot. I can boot on my 16MB laptop, but it is a little painful to do much on. On that I can elimiante usb and pci since there's no pci bus at all. Oh, and firewire too! Warner