From owner-freebsd-isp Fri Sep 20 18:44:29 1996 Return-Path: owner-isp Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id SAA20915 for isp-outgoing; Fri, 20 Sep 1996 18:44:29 -0700 (PDT) Received: from silvia.HIP.Berkeley.EDU (silvia.HIP.Berkeley.EDU [136.152.64.181]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id SAA20765; Fri, 20 Sep 1996 18:44:16 -0700 (PDT) Received: (from asami@localhost) by silvia.HIP.Berkeley.EDU (8.7.6/8.6.9) id SAA13100; Fri, 20 Sep 1996 18:43:44 -0700 (PDT) Date: Fri, 20 Sep 1996 18:43:44 -0700 (PDT) Message-Id: <199609210143.SAA13100@silvia.HIP.Berkeley.EDU> To: michaelv@MindBender.serv.net CC: freebsd-scsi@freebsd.org, freebsd-current@freebsd.org, freebsd-isp@freebsd.org In-reply-to: <199609210101.SAA19669@MindBender.serv.net> (michaelv@MindBender.serv.net) Subject: Re: Streamlogic RAID array benchmarks From: asami@freebsd.org (Satoshi Asami) Sender: owner-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk * >Just FYI, we've seen close to 30MB/s with ccd (no mirroring). You * >need two 2940?W's (or one 3940?W) and at least four disks though. * * Just for our edification, what kind of CPU did you use? * * Also For Everyones' Information, you won't get close to that on a real * filesystem unless you use a Pentium or better. Yeah, it's a P5 (133MHz). We got pretty much the same result with the P6 (200MHz) too (which is kinda surprising, given that their memory system is so much slower). Satoshi P.S. http://now.cs.berkeley.edu/Td/bcopy.html for more on the memory thing.