From owner-freebsd-questions@FreeBSD.ORG Wed Mar 22 11:33:16 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0F9B316A4DB for ; Wed, 22 Mar 2006 11:33:16 +0000 (UTC) (envelope-from maslak@ihlas.net.tr) Received: from mailhub.ihlas.net.tr (mailhub.ihlas.net.tr [213.238.128.250]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0821D43D48 for ; Wed, 22 Mar 2006 11:33:14 +0000 (GMT) (envelope-from maslak@ihlas.net.tr) Received: (qmail 75247 invoked from network); 22 Mar 2006 11:33:39 -0000 Received: from unknown (HELO ihlasnetym) (maslak@213.238.150.220) by 0 with ESMTPA; 22 Mar 2006 11:33:39 -0000 Message-ID: <143f01c64da4$5004b960$dc96eed5@ihlasnetym> From: "Halid Faith" To: Date: Wed, 22 Mar 2006 13:32:29 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1506 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 Subject: How do I test disk performance in Freebsd60 ? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Mar 2006 11:33:16 -0000 I use FreeBSD60 on Dell1600 SC ( 2gbyte Ram 4 CPU ) amr0: mem 0xfcc00000-0xfcc0ffff irq 21 at device 2.0 on pci2 amr0: Firmware 351X, BIOS 1.10, 64MB RAM I have 3 scsi disks that each about 70 Gbyte based RAID5. That is Total capacity nearly 140 Gbyte. I want to test disk / raid card. I tried below command 10 times while I 'm root date && dd if=/dev/zero of=deleteme.now bs=64k count=300 && rm deleteme.now && date 1 - 19660800 bytes transferred in 3.420916 secs (5747232 bytes/sec) 2 - 19660800 bytes transferred in 3.318186 secs (5925165 bytes/sec) 3 - 19660800 bytes transferred in 1.325308 secs (14834893 bytes/sec) 4 - 19660800 bytes transferred in 1.475633 secs (13323637 bytes/sec) 5 - 19660800 bytes transferred in 1.458992 secs (13475605 bytes/sec) 6 - 19660800 bytes transferred in 1.373914 secs (14310066 bytes/sec) 7 - 19660800 bytes transferred in 1.597467 secs (19307485 bytes/sec) 8 - 19660800 bytes transferred in 1.308806 secs (15021937 bytes/sec) 9 - 19660800 bytes transferred in 1.324031 secs (14849201 bytes/sec) 10- 19660800 bytes transferred in 1.438717 secs (13665510 bytes/sec) As you see the values of bytes/sec is not stable very changeable. I wonder Do disks or the raid card work properly ? Thanks