From owner-freebsd-current  Mon Nov 11 10:08:49 1996
Return-Path: owner-current
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id KAA29955
          for current-outgoing; Mon, 11 Nov 1996 10:08:49 -0800 (PST)
Received: from friley216.res.iastate.edu (friley216.res.iastate.edu [129.186.78.216])
          by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id KAA29950
          for <freebsd-current@FreeBSD.ORG>; Mon, 11 Nov 1996 10:08:46 -0800 (PST)
Received: from friley216.res.iastate.edu (loopback [127.0.0.1]) by friley216.res.iastate.edu (8.7.6/8.7.3) with ESMTP id MAA02300; Mon, 11 Nov 1996 12:06:31 -0600 (CST)
Message-Id: <199611111806.MAA02300@friley216.res.iastate.edu>
X-Mailer: exmh version 1.6.9 8/22/96
To: Dan Janowski <danj@3skel.com>
cc: bsdcur@shadows.aeon.net, jgreco@brasil.moneng.mei.com,
        freebsd-current@FreeBSD.ORG
Subject: Re: ufs is too slow? 
In-reply-to: Your message of Mon, 11 Nov 1996 12:04:35 -0500.
             <199611111704.MAA12463@fnur.3skel.com> 
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Date: Mon, 11 Nov 1996 12:06:31 -0600
From: Chris Csanady <ccsanady@friley216.res.iastate.edu>
Sender: owner-current@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk


Speaking of LFS, I believe John Dyson mentioned that he was
fixing/rewriting(some of) it.  Also, getting the other various
file systems (union, null, etc) to work for 2.2.  Are you still
working on any of this?  Or did I confuse something? :-)

Later,
chris csanady

>At one point I had inquired about lfs (log file system), in
>part because of my experience with xfs (SGI's). Although lfs
>is not xfs, they are both better performers than ufs/ffs (which
>are both REALLY old, I think ufs dates from the 50's and ffs
>from the 70's).
>I have seen that OpenBSD is doing something with lfs, but I
>am not sure what. It would be worth while to get lfs running
>for sure; if you ever wondered, a lot of that disk bandwith
>goes to filesystem overhead.
>
>I once exchanged some e-mail with someone at BSDI and with
>Margo Seltzer, who was a principle for lfs. The apparent
>primary reason why lfs does not run here is that lfs does some
>wierd stuff with the ATT buffer code that is missing in
>4.4-lite. I was not able to get a synopsis of what or how to
>get around it, but it didn't sound like lfs was broken, it's
>just missing some wheels.
>
>Maybe we can all talk about it a little and figure out
>how hard it would be to get going. If we were running
>a kick-ass big/fast file system, FreeBSD would capture
>some more of the Int(er|tra)+Net market. In addition
>to which, the infamous 'make world' time would surely
>benefit.
>
>Dan
>
>--
>danj@3skel.com
>Triskelion Systems, Inc.
>New York
>