From owner-freebsd-stable Fri Sep 28 14:38:27 2001 Delivered-To: freebsd-stable@freebsd.org Received: from mail.dada.it (mail3.dada.it [195.110.96.70]) by hub.freebsd.org (Postfix) with SMTP id 35CA037B408 for ; Fri, 28 Sep 2001 14:38:20 -0700 (PDT) Received: (qmail 1719 invoked from network); 28 Sep 2001 21:38:12 -0000 Received: from unknown (HELO libero.sunshine.ale) (195.110.114.252) by mail.dada.it with SMTP; 28 Sep 2001 21:38:12 -0000 Received: by libero.sunshine.ale (Postfix, from userid 1001) id CC4285D7C; Fri, 28 Sep 2001 23:38:00 +0200 (CEST) Date: Fri, 28 Sep 2001 23:38:00 +0200 From: Alessandro de Manzano To: Sean Chittenden Cc: Kris Kennaway , stable@FreeBSD.org Subject: Re: dirpref gives massive performance boost Message-ID: <20010928233800.B29391@libero.sunshine.ale> Reply-To: Alessandro de Manzano References: <20010928141246.A15515@xor.obsecurity.org> <20010928232009.A29187@libero.sunshine.ale> <20010928142611.A15946@xor.obsecurity.org> <20010928143016.H29974@rand.tgd.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20010928143016.H29974@rand.tgd.net>; from sean@chittenden.org on Fri, Sep 28, 2001 at 02:30:16PM -0700 X-Operating-System: FreeBSD 4.4-STABLE Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, Sep 28, 2001 at 02:30:16PM -0700, Sean Chittenden wrote: > > Well, you need to wipe the disk so that when you restore it can lay > > things out optimally from the start. > > But turning on soft-updates should be sufficient to get these performance > boosts from this point on, correct? -sc AFAIK SU is not related to the physical layout of data on disk, this is the work of UFS_DIRHASH. -- bye! Ale ale@unixmania.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message