From owner-freebsd-chat Fri Aug 11 4:10:58 2000 Delivered-To: freebsd-chat@freebsd.org Received: from apoq.skynet.be (apoq.skynet.be [195.238.2.35]) by hub.freebsd.org (Postfix) with ESMTP id E3CF737B70A for ; Fri, 11 Aug 2000 04:10:53 -0700 (PDT) (envelope-from blk@skynet.be) Received: from [195.238.1.121] (brad.techos.skynet.be [195.238.1.121]) by apoq.skynet.be (Postfix) with ESMTP id 05C971F33D; Fri, 11 Aug 2000 13:10:50 +0200 (MET DST) Mime-Version: 1.0 X-Sender: blk@pop.skynet.be Message-Id: In-Reply-To: <39937053.332963616@mail.sentex.net> References: <3990bd61.156080972@mail.sentex.net> <39937053.332963616@mail.sentex.net> Date: Fri, 11 Aug 2000 12:39:04 +0200 To: mike@sentex.net (Mike Tancsa), fran@reyes.somos.net ("Francisco Reyes") From: Brad Knowles Subject: Re: 3ware IDE Raid. SCSI killer? Cc: chat@FreeBSD.ORG Content-Type: text/plain; charset="us-ascii" ; format="flowed" Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org At 3:26 AM +0000 2000/8/11, Mike Tancsa wrote: > ------Sequential Output-------- ---Sequential Input-- --Random-- > Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- > MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU > 300 18638 97.0 36388 73.0 11448 26.0 13001 98.6 46468 45.3 341.9 4.0 > 300 17829 93.8 18565 32.7 8792 20.3 12535 95.4 22437 21.2 200.6 2.2 These numbers don't look particularly impressive to me -- look at how much CPU you're chewing up, and how little benefit there is. > First is RAID0, second is the same drive on the Intel PIIX4 ATA33 > controller by itself. In that case, these numbers do not look at all impressive. -- These are my opinions -- not to be taken as official Skynet policy ====================================================================== Brad Knowles, || Belgacom Skynet SA/NV Systems Architect, Mail/News/FTP/Proxy Admin || Rue Colonel Bourg, 124 Phone/Fax: +32-2-706.13.11/12.49 || B-1140 Brussels http://www.skynet.be || Belgium "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." -Benjamin Franklin, Historical Review of Pennsylvania. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message