From owner-freebsd-hardware Mon Jun 25 18: 1: 9 2001 Delivered-To: freebsd-hardware@freebsd.org Received: from mail.cs.ait.ac.th (mail.cs.ait.ac.th [192.41.170.16]) by hub.freebsd.org (Postfix) with ESMTP id 5697737B406 for ; Mon, 25 Jun 2001 18:01:06 -0700 (PDT) (envelope-from on@cs.ait.ac.th) Received: from banyan.cs.ait.ac.th (on@banyan.cs.ait.ac.th [192.41.170.5]) by mail.cs.ait.ac.th (8.11.3/8.9.3) with ESMTP id f5Q12ip46975; Tue, 26 Jun 2001 08:02:44 +0700 (ICT) Received: (from on@localhost) by banyan.cs.ait.ac.th (8.8.5/8.8.5) id IAA13636; Tue, 26 Jun 2001 08:00:48 +0700 (ICT) Date: Tue, 26 Jun 2001 08:00:48 +0700 (ICT) Message-Id: <200106260100.IAA13636@banyan.cs.ait.ac.th> X-Authentication-Warning: banyan.cs.ait.ac.th: on set sender to on@banyan.cs.ait.ac.th using -f From: Olivier Nicole To: peter.jeremy@alcatel.com.au Cc: flemming@froekjaer.org, hardware@FreeBSD.ORG In-reply-to: <20010626102156.G95583@gsmx07.alcatel.com.au> (message from Peter Jeremy on Tue, 26 Jun 2001 10:21:56 +1000) Subject: Re: Disk performance References: <3B37C156.CD4CE20C@froekjaer.org> <20010626102156.G95583@gsmx07.alcatel.com.au> Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org >I tried to dump a file system to a DLT tape. >The tape is cable of 10MB/s but I only got about 1600 KB/s >To find out if it was the tape I tried to dump to /dev/null instead, but >i still only get 1665 KB/s There have been mention about team and cstream, both are in the ports, to buffer disk read and send larger blocks to the tape. Olivier To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message