From owner-freebsd-hardware Thu Aug 23 4: 5:43 2001 Delivered-To: freebsd-hardware@freebsd.org Received: from paperboy.sixforty.co.uk (paperboy.sixforty.co.uk [195.10.242.11]) by hub.freebsd.org (Postfix) with ESMTP id 2FB8437B407 for ; Thu, 23 Aug 2001 04:05:39 -0700 (PDT) (envelope-from freebsd-hw@sixforty.co.uk) Received: (from root@localhost) by paperboy.sixforty.co.uk (8.11.1/8.11.1) id f7NB5Ih42135; Thu, 23 Aug 2001 12:05:18 +0100 (BST) (envelope-from freebsd-hw@sixforty.co.uk) Delivered-To: nicole@unixgirl.com Received: from lfarr (daisy.int.epcdirect.co.uk [192.168.6.200]) by paperboy.sixforty.co.uk (8.11.1/8.11.1av) with ESMTP id f7NB59642126; Thu, 23 Aug 2001 12:05:09 +0100 (BST) (envelope-from freebsd-hw@sixforty.co.uk) From: "Lawrence Farr" To: "'Hodge Podge'" , "'Darryl Okahata'" Cc: "'Michael VanLoon'" , , "'Marc Rassbach'" Subject: RE: 3ware stuff not ready for heavy duty useage-followup Date: Thu, 23 Aug 2001 12:05:17 +0100 Message-ID: <004101c12bc3$81e74900$c80aa8c0@lfarr> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2462.0000 Importance: Normal X-Virus-Scanned: by AMaViS perl-10 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 left my server (previous email below) running a benchmark that I made up that took a 1mb file and cat'ed to another file until it got to 1Gb. I then read the file back by cat'ing to /dev/null, and repeated until I filled the partition (140Gb). It did this 3 times in total and got results like: Pass 23 - 1048576 kb written in 115 seconds, at 9118 kb/Sec Pass 23 - 1048576 kb read in 15 seconds, at 69905 kb/Sec Pass 24 - 1048576 kb written in 116 seconds, at 9039 kb/Sec Pass 24 - 1048576 kb read in 15 seconds, at 69905 kb/Sec It all works fine, but the writes are awful. Iozone seems to agree with me: File size set to 10240 KB Time Resolution = 0.000001 seconds. Processor cache size set to 1024 Kbytes. Processor cache line size set to 32 bytes. File stride size set to 17 * record size. random random KB reclen write rewrite read reread read write read 10240 4 9397 9461 266043 266458 236609 188083 253962 Anyone got any ideas for tuning this? Or is that it performance wise? How about splitting the drives to 4 stripe sets, and Raid 5 across them with vinum? Anyone else want to see any specific tests? >-----Original Message----- >From: Lawrence Farr [mailto:freebsd-hw@sixforty.co.uk] >Sent: 22 August 2001 14:59 >To: 'Hodge Podge' >Cc: 'mike.wentz@3ware.com'; 'freebsd-hardware@FreeBSD.ORG'; >'Borja Marcos'; 'Michael VanLoon'; 'val@picturetrail.com' >Subject: RE: 3ware stuff not ready for heavy duty useage- ATTN 3ware > > >Im just formatting an 8 drive (Maxtor 536DX 100Gb) 7000 series >array, 400W supply. > >Pick a benchmark and I'll run it for a while. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message