From owner-freebsd-questions@FreeBSD.ORG Wed Apr 7 17:59:05 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4C93116A4CE for ; Wed, 7 Apr 2004 17:59:05 -0700 (PDT) Received: from ozlabs.org (ozlabs.org [203.10.76.45]) by mx1.FreeBSD.org (Postfix) with ESMTP id B8C7043D5C for ; Wed, 7 Apr 2004 17:59:04 -0700 (PDT) (envelope-from grog@lemis.com) Received: from blackwater.lemis.com (blackwater.lemis.com [192.109.197.80]) by ozlabs.org (Postfix) with ESMTP id AE2332BD90 for ; Thu, 8 Apr 2004 10:59:02 +1000 (EST) Received: by blackwater.lemis.com (Postfix, from userid 1004) id BD90951208; Thu, 8 Apr 2004 10:29:00 +0930 (CST) Date: Thu, 8 Apr 2004 10:29:00 +0930 From: Greg 'groggy' Lehey To: "J.D. Bronson" Message-ID: <20040408005900.GO23860@wantadilla.lemis.com> References: <6.1.0.5.2.20040407161942.00bd3f28@cheyenne.wixb.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="yruHGtsrg8HLSUpe" Content-Disposition: inline In-Reply-To: <6.1.0.5.2.20040407161942.00bd3f28@cheyenne.wixb.com> User-Agent: Mutt/1.4.1i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 9A1B 8202 BCCE B846 F92F 09AC 22E6 F290 507A 4223 cc: freebsd-questions@freebsd.org Subject: Re: DUMP is slow? (5.2.1) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Apr 2004 00:59:05 -0000 --yruHGtsrg8HLSUpe Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wednesday, 7 April 2004 at 16:24:17 -0500, J.D. Bronson wrote: > I am dumping about 284MB... > > Now here is what I did... > > 1. identical drives on the same Adaptec 29160 controller > 2. Each drive is sliced and formatted the same > 3. I ran 'tunefs -n enable' > 4. Mounted drive 2 as /mntg > > > Then as root do this: > # dump -C 32 -0Lf - /home | ( cd /mntg ; restore xf - ) > DUMP: Date of this level 0 dump: Wed Apr 7 16:17:13 2004 > .. > DUMP: finished in 45 seconds, throughput 6288 KBytes/sec > > ..that seems a bit slow for SCSI.... You're creating a whole lot of files in the process. Without the restore it would probably be faster. > # ufsdump -0f - /export/home | ( cd /mnt6 ; ufsrestore xf - ) > ... > DUMP: 571006 blocks (278.81MB) on 1 volume at 22362 KB/sec > > That speed seems more reasonable. > > Is there any reason that the FreeBSD machine is so much slower? Different hardware, I would imagine. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html Note: I discard all HTML mail unseen. Finger grog@FreeBSD.org for PGP public key. See complete headers for address and phone numbers. --yruHGtsrg8HLSUpe Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.0 (FreeBSD) iD8DBQFAdKPUIubykFB6QiMRAlLIAJwKP8BNQLwBjaSCUQCLmqWG+e8yaQCfd1wu ijgCV8dx/A2p31USQMcCx+Q= =0WbM -----END PGP SIGNATURE----- --yruHGtsrg8HLSUpe--