From owner-freebsd-current Tue Jul 7 11:29:33 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id LAA12184 for freebsd-current-outgoing; Tue, 7 Jul 1998 11:29:33 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from dingo.cdrom.com (dingo.cdrom.com [204.216.28.145]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id LAA12178 for ; Tue, 7 Jul 1998 11:29:31 -0700 (PDT) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (localhost [127.0.0.1]) by dingo.cdrom.com (8.8.8/8.8.5) with ESMTP id LAA01144; Tue, 7 Jul 1998 11:28:13 -0700 (PDT) Message-Id: <199807071828.LAA01144@dingo.cdrom.com> X-Mailer: exmh version 2.0zeta 7/24/97 To: Thomas Zenker cc: Mike Smith , freebsd-current@FreeBSD.ORG Subject: Re: FreeBSD in less than 4MB RAM In-reply-to: Your message of "Tue, 07 Jul 1998 20:10:29 +0200." <19980707201029.31948@tue.le> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Tue, 07 Jul 1998 11:28:12 -0700 From: Mike Smith Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > > For those which say "put in more memory/disk": This doesn't help if you > > > have to run out of batteries w/ solar-panels on very remote localities, > > > only access by radio-telemetry. You need very low power equipment there. > > > So the question is not $ but watts. > > > > In the same timeframe, memory power consumption has gone down by more > > than an order of maginitude, while cost has fallen even further. > > > > Sorry, but the argument still holds good. 8) > > Sorry, but to run with 3 watts from dynamic memory is not possible, > do you know prices of SRAM? Also effordable harddisks are > much lower now in consumption, but not that low. So booting from > eprom or floppy is a must. No insult intended, but your design obviously sucks. I am working right now with a PC104 board not specifically designed for low-power operation. It manages to put an NX586-based micro, all the standard PC peripherals, 8M of RAM, 8M of flash, etc. into a sub-3W power budget. Like I said, this is a design that's not even trying. Look at the power budget that eg. the Palm Pilot works with. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message