From owner-freebsd-questions Tue Dec 8 03:17:27 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id DAA12970 for freebsd-questions-outgoing; Tue, 8 Dec 1998 03:17:27 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from pansy.csv.warwick.ac.uk (pansy.csv.warwick.ac.uk [137.205.192.19]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id DAA12962 for ; Tue, 8 Dec 1998 03:17:25 -0800 (PST) (envelope-from csubl@csv.warwick.ac.uk) Received: from lupin.csv.warwick.ac.uk (csubl@lupin-fddi [137.205.4.7]) by pansy.csv.warwick.ac.uk (8.9.1/8.9.1) with ESMTP id LAA20353; Tue, 8 Dec 1998 11:17:10 GMT Received: (from csubl@localhost) by lupin.csv.warwick.ac.uk (8.9.1/8.9.1) id LAA24510; Tue, 8 Dec 1998 11:16:44 GMT From: Mr M P Searle Message-Id: <199812081116.LAA24510@lupin.csv.warwick.ac.uk> Subject: Re: your mail In-Reply-To: <199812071844.SAA11449@bbmail1.unisys.com> from "Singh, Hardeep IN" at "Dec 8, 98 00:12:00 am" To: singhh@delpo1.in.unisys.com (Singh, Hardeep IN) Date: Tue, 8 Dec 1998 11:16:43 +0000 (GMT) Cc: freebsd-questions@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL31 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > Sir, > These are the set of questions regarding FreeBSD i wanted to ask for long. I > > 6)Is there any tool like online defragmenter on Unix.I do not have any tape > drive attached to my P.C to unload my file systems and restore them > back.Will it be a good idea to dump filesystem on some other machine and > restore it back via ftp in order to minimise defragmentation.How much degree > of fragmentation is generally tolerable in file systems on FreeBSD any tips > !!. This is prodding me for quite some time because of the fact that i see > that netscape loading takes a appreciable amount of time now a days as > compared to when i initially installed FreeBSD.There could be other reasons > as well but i see that my /usr filesystem shows about 5% defragmentation.How > else could i increase the performance of my system.Pls help me with tips or > guide me to a suitable Web or Book resource for increasing performance. > I am already running kernel built to my P.C specifications and > requirements. > I don't think you should do this - fragmetation is not much of a problem, 5% is quite a lot, but probably won't make much difference to speed (and will slowly decrease with normal use.) But, when I transferred a FS from one disk to another to give it more space, it went from <1 to 5% fragmentation - AFAIK the FS is optimised to stay defragmented in normal use - which doesn't include copying the whole thing. This may depend on how you copy the FS across - I think I used cpio but I'm not sure... (although I've not used it, I would expect dump to leave everything unchanged.) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message