From owner-freebsd-current Wed May 8 02:49:05 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id CAA21362 for current-outgoing; Wed, 8 May 1996 02:49:05 -0700 (PDT) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id CAA21343 for ; Wed, 8 May 1996 02:48:58 -0700 (PDT) Received: from msmith@localhost by genesis.atrad.adelaide.edu.au (8.6.12/8.6.9) id TAA28551; Wed, 8 May 1996 19:23:51 +0930 From: Michael Smith Message-Id: <199605080953.TAA28551@genesis.atrad.adelaide.edu.au> Subject: Re: *SLOW* remote dumps To: rgrimes@GndRsh.aac.dev.com (Rodney W. Grimes) Date: Wed, 8 May 1996 19:23:50 +0930 (CST) Cc: nate@sri.MT.net, current@FreeBSD.ORG In-Reply-To: <199605080602.XAA02949@GndRsh.aac.dev.com> from "Rodney W. Grimes" at May 7, 96 11:02:01 pm MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Rodney W. Grimes stands accused of saying: > > > > I decided to backup my laptop since I got a new disk for doing -current > > > development last week, and backups speeds are running 30-40K/sec, > > > whereas the exact same box running -stable (different drive, but > > > iozone's are comperable) gives me 450-500K/sec. Any ideas? > > > > Note, I tried using rsh and it went *really* fast, although it wasn't a > > usable dump. > > > > dump 0usf 138600 - /usr | rsh remotehost dd of=/dev/rmt/0ub > > Try that as: > dump 0busf 10 138600 - /usr | rsh dd bs=10240 of=/dev/rmt/0ub Why are you using rsh? We've been remote-dumping (and restoring, AFAIK) for quite some time, with excellent throughput using : dump 0fuB :/dev/nrst0 2097000 on 2GB DDS tapes. Using host:device sends stuff to rmt which is highly preferable to rsh. -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] Collector of old Unix hardware. "Where are your PEZ?" The Tick [[