From owner-freebsd-advocacy Wed Jan 8 19:34:38 2003 Delivered-To: freebsd-advocacy@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B3BE037B401 for ; Wed, 8 Jan 2003 19:34:37 -0800 (PST) Received: from HAL9000.homeunix.com (12-233-57-224.client.attbi.com [12.233.57.224]) by mx1.FreeBSD.org (Postfix) with ESMTP id 033B843F1C for ; Wed, 8 Jan 2003 19:34:37 -0800 (PST) (envelope-from dschultz@uclink.Berkeley.EDU) Received: from HAL9000.homeunix.com (localhost [127.0.0.1]) by HAL9000.homeunix.com (8.12.6/8.12.5) with ESMTP id h093YVZ3000813; Wed, 8 Jan 2003 19:34:31 -0800 (PST) (envelope-from dschultz@uclink.Berkeley.EDU) Received: (from das@localhost) by HAL9000.homeunix.com (8.12.6/8.12.5/Submit) id h093YUfX000812; Wed, 8 Jan 2003 19:34:30 -0800 (PST) (envelope-from dschultz@uclink.Berkeley.EDU) Date: Wed, 8 Jan 2003 19:34:30 -0800 From: David Schultz To: "=?us-ascii:iso-8859-1?Q?Micha=B3?= Pasternak" Cc: Terry Lambert , paul beard , advocacy@FreeBSD.ORG, sellis@telus.net Subject: Re: [Fwd: web write-up] Message-ID: <20030109033430.GA731@HAL9000.homeunix.com> Mail-Followup-To: "=?us-ascii:iso-8859-1?Q?Micha=B3?= Pasternak" , Terry Lambert , paul beard , advocacy@FreeBSD.ORG, sellis@telus.net References: <3E1C8287.1020506@mac.com> <3E1C9249.551D6932@mindspring.com> <20030108220533.GB18151@pasternak.w.lub.pl> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii:iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20030108220533.GB18151@pasternak.w.lub.pl> Sender: owner-freebsd-advocacy@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Thus spake Micha³ Pasternak : > I'm especially concerned about softupdates + dirhash compared > to ext3fs or reiser. NVidia's drivers performance should be > also easy to perform. You can find an analysis of the performance impact of dirpref and dirhash in the paper ``Recent Filesystem Optimisations in FreeBSD'' on page 245 in _Proceedings of the FREENIX Track_ 2002. It doesn't address ext3fs, just as the ext3fs papers don't talk about UFS. Note that the paper portrays vmiodir poorly because the benchmarks presented don't tickle the particular case vmiodir is intended to address (even though vmiodir really does perform poorly in the situations tested). To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-advocacy" in the body of the message