From owner-freebsd-current Mon Nov 2 10:51:14 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id KAA17869 for freebsd-current-outgoing; Mon, 2 Nov 1998 10:51:14 -0800 (PST) (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 KAA17864 for ; Mon, 2 Nov 1998 10:51:13 -0800 (PST) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (LOCALHOST [127.0.0.1]) by dingo.cdrom.com (8.9.1/8.8.8) with ESMTP id GAA10950; Mon, 2 Nov 1998 06:53:44 -0800 (PST) (envelope-from mike@dingo.cdrom.com) Message-Id: <199811021453.GAA10950@dingo.cdrom.com> X-Mailer: exmh version 2.0.2 2/24/98 To: Poul-Henning Kamp cc: "Jordan K. Hubbard" , Mike Smith , Andrzej Bialecki , current@FreeBSD.ORG Subject: Re: New boot loader and alternate kernels In-reply-to: Your message of "Mon, 02 Nov 1998 14:08:54 +0100." <22253.910012134@critter.freebsd.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 02 Nov 1998 06:53:43 -0800 From: Mike Smith Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > >Given the space constraints, one has to wonder whether you have any > >choice. :-) It would be easy enough to add some simple conditional > >expression parsing to the existing tiny interpreter, but that wouldn't > >be anywhere near as flexible. > > What exactly are the the space constraints ? > How many [kK][bB] can we suffer ? Well, text goes in the low moby, the bss and heap in the high moby. Seriously, a 512kB execution context limit is reasonable; this is what we get on the Alpha now that Doug's tweaked the memory allocation. On the '386 we have just about everything below the 640k mark, so I figure 512 is a reasonable limit. For on-disk usage, the key issue to me is avoiding anti-bloatist complaint (which have their fair justification). I'd like to think we can stabilise at an object under the 100k mark, although there are of course no real hard limits yet. -- \\ 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