From owner-freebsd-performance@FreeBSD.ORG Fri Apr 29 10:18:27 2005 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 000AC16A4CE; Fri, 29 Apr 2005 10:18:26 +0000 (GMT) Received: from multiplay.co.uk (www1.multiplay.co.uk [212.42.16.7]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0FA6743D2D; Fri, 29 Apr 2005 10:18:26 +0000 (GMT) (envelope-from killing@multiplay.co.uk) Received: from stevenp4 ([193.123.241.40]) by multiplay.co.uk (multiplay.co.uk [212.42.16.7]) (MDaemon.PRO.v8.0.1.R) with ESMTP id md50001368651.msg; Fri, 29 Apr 2005 11:14:53 +0100 Message-ID: <08a501c54ca4$c3e80f00$7f06000a@int.mediasurface.com> From: "Steven Hartland" To: "Peter Losher" References: <06ba01c54bff$8c5aed00$7f06000a@int.mediasurface.com> <4271812F.4060808@isc.org> Date: Fri, 29 Apr 2005 11:18:19 +0100 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="Windows-1252"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2527 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 X-Spam-Processed: multiplay.co.uk, Fri, 29 Apr 2005 11:14:53 +0100 (not processed: message from valid local sender) X-MDRemoteIP: 193.123.241.40 X-Return-Path: killing@multiplay.co.uk X-MDAV-Processed: multiplay.co.uk, Fri, 29 Apr 2005 11:14:53 +0100 cc: freebsd-hackers@freebsd.org cc: freebsd-performance@freebsd.org Subject: Re: Very low disk performance Highpoint 1820a X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Apr 2005 10:18:27 -0000 There is no precompiled version for 5.3 but looking at the openbuild version its the same driver as the built in. 80MB/s is still terrible should be looking closer to 200MB/s. Steven Hartland wrote: > 5.4-STABLE Highpoint 1820a RAID 5 ( 5 disk ) > dd if=/dev/da0 of=/dev/null bs=64k count=10000 > 10000+0 records in > 10000+0 records out > 655360000 bytes transferred in 13.348032 secs (49097875 bytes/sec) Have you tried the driver supplied by Highpoint as a pre-compiled kernel module? I have a 1820A with 4x400GB Hitachi SATA disks (RAID5 + 1 Hot Spare) in a system running 5.3-RC3/amd64, where I have to use the kernel module, and I get almost double the speed that you have: -=- % dd if=/dev/da0 of=/dev/null bs=64k count=10000 10000+0 records in 10000+0 records out 655360000 bytes transferred in 7.775190 secs (84288614 bytes/sec) ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone (023) 8024 3137 or return the E.mail to postmaster@multiplay.co.uk.