From owner-cvs-all Fri Jan 30 19:27:57 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id TAA03987 for cvs-all-outgoing; Fri, 30 Jan 1998 19:27:57 -0800 (PST) (envelope-from owner-cvs-all@FreeBSD.ORG) Received: from sumatra.americantv.com (sumatra.americantv.com [207.170.17.37]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id TAA03811 for ; Fri, 30 Jan 1998 19:27:10 -0800 (PST) (envelope-from jlemon@americantv.com) Received: from right.PCS (right.PCS [148.105.10.31]) by sumatra.americantv.com (8.8.5/8.8.5) with ESMTP id VAA14147; Fri, 30 Jan 1998 21:27:17 -0600 (CST) Received: (from jlemon@localhost) by right.PCS (8.6.13/8.6.4) id VAA17553; Fri, 30 Jan 1998 21:26:36 -0600 Message-ID: <19980130212636.64874@right.PCS> Date: Fri, 30 Jan 1998 21:26:36 -0600 From: Jonathan Lemon To: Ollivier Robert Cc: cvs-committers@FreeBSD.ORG Subject: Re: cvs commit: src/sys/conf files options src/sys/i386/conf LINT src/sys/i386/i386 autoconf.c src/sys/kern init_main.c init_sys References: <015201bd2dc9$c7e51f00$2844c00a@cello.synapse.net> <19980130162329.10474@right.PCS> <19980131030605.34628@keltia.freenix.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.61.1 In-Reply-To: <19980131030605.34628@keltia.freenix.fr>; from Ollivier Robert on Jan 01, 1998 at 03:06:05AM +0100 Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk X-To-Unsubscribe: mail to majordomo@FreeBSD.org "unsubscribe cvs-all" On Jan 01, 1998 at 03:06:05AM +0100, Ollivier Robert wrote: > According to Jonathan Lemon: > > Well, from what I understand of LFS, it performs best as a 'write-only' > > filesystem. You aren't really supposed to be reading from an LFS, you > > should be reading from your memory cache. From that perspective, I heard > > one professor call a 64MB cache "small" for a LFS system. > > If you read Margo's thesis, the huge memory consumption is the big problem > of Sprite and LFS is supposed to need less memory. > > One of its biggest problem apart from being incompatible with the unified > buffer cache/VM is that many features were never implemented (like the > rollback fsck). > > The thesis is very enlightning on FS and their flaws BTW. Reference? I think I only have papers from Rosenblum and Ousterhout. -- Jonathan