From owner-freebsd-alpha Tue Apr 3 14:38:19 2001 Delivered-To: freebsd-alpha@freebsd.org Received: from netau1.alcanet.com.au (ntp.alcanet.com.au [203.62.196.27]) by hub.freebsd.org (Postfix) with ESMTP id E4FAC37B71B for ; Tue, 3 Apr 2001 14:38:15 -0700 (PDT) (envelope-from jeremyp@gsmx07.alcatel.com.au) Received: from mfg1.cim.alcatel.com.au (mfg1.cim.alcatel.com.au [139.188.23.1]) by netau1.alcanet.com.au (8.9.3 (PHNE_22672)/8.9.3) with ESMTP id HAA09336; Wed, 4 Apr 2001 07:38:13 +1000 (EST) Received: from gsmx07.alcatel.com.au by cim.alcatel.com.au (PMDF V5.2-32 #37641) with ESMTP id <01K1ZSNHOUKWRX53PE@cim.alcatel.com.au>; Wed, 4 Apr 2001 07:38:04 +1100 Received: (from jeremyp@localhost) by gsmx07.alcatel.com.au (8.11.1/8.11.1) id f33LcAJ54742; Wed, 04 Apr 2001 07:38:10 +1000 (EST envelope-from jeremyp) Content-return: prohibited Date: Wed, 04 Apr 2001 07:38:10 +1000 From: Peter Jeremy Subject: Re: Install floppies In-reply-to: ; from dfr@nlsystems.com on Tue, Apr 03, 2001 at 02:31:35PM +0100 To: Doug Rabson Cc: alpha@FreeBSD.ORG Mail-Followup-To: Doug Rabson , alpha@FreeBSD.ORG Message-id: <20010404073810.P27632@gsmx07.alcatel.com.au> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-disposition: inline User-Agent: Mutt/1.2.5i References: Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On 2001-Apr-03 14:31:35 +0100, Doug Rabson wrote: >I was just thinking about the install floppies, particularly about the >severe space problems that we have there. PR gnu/26083 includes patches gcc to support the same -malign-XXX=N functionality as the i386. My kernel text segment shrank about 10% when I built it with 32-bit alignment (ISO 16-byte jump and 32-byte function alignment). The padding should compress fairly well, and I haven't tried building boot floppies with it so I don't know what the overall savings would be. > Currently our alpha install >floppies are ufs filesystems and it occurred to me that cd9660 might be a >bit more space efficient. Why not go the whole hog and build something that just uses a name, start block and length. This would reduce the FS overhead to 1 block. (I think the UFS overhead is ~24k, I'm not sure about cd9660). Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message