From owner-freebsd-hackers Sat Nov 23 20:28:51 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id UAA27324 for hackers-outgoing; Sat, 23 Nov 1996 20:28:51 -0800 (PST) Received: from mail.cdsnet.net (mail.cdsnet.net [204.118.244.5]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id UAA27306 for ; Sat, 23 Nov 1996 20:28:45 -0800 (PST) Received: from mail.cdsnet.net (mail.cdsnet.net [204.118.244.5]) by mail.cdsnet.net (8.7.6/8.7.3) with SMTP id UAA26594 for ; Sat, 23 Nov 1996 20:28:43 -0800 (PST) Date: Sat, 23 Nov 1996 20:28:39 -0800 (PST) From: Jaye Mathisen To: hackers@freebsd.org Subject: Holy Moley Batman... I love ccd. and BTW, if you need 4gb disks. Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Just playing around with CCD and 2 Atlas's on a P120 2940UW, 128MB RAM. It kept the sys time at 80-90%, so maybe a faster CPU would help. IOZONE writes a 512 Megabyte sequential file consisting of 8192 records which are each 65536 bytes in length. It then reads the file. It prints the bytes-per-second rate at which the computer can read and write files. Writing the 512 Megabyte file, 'iozone.tmp'...42.148438 seconds Reading the file...37.859375 seconds IOZONE performance measurements: 12737623 bytes/second for writing the file 14180659 bytes/second for reading the file (It was over 15 on one run). My only observartion is that this goes against all the people telling me that reading should be slower than writing, when it turns out inverted on some fuji disks I have. In any case, it's nice and fast. As to drives, SuperCom had Quantum 4GB Atlas's 34300W (Wide) for $870, which is a pretty good price.