From owner-freebsd-questions@FreeBSD.ORG Tue Jan 16 22:01:03 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 3AF6016A494 for ; Tue, 16 Jan 2007 22:01:03 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id BF19813C45D for ; Tue, 16 Jan 2007 22:01:02 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1H6wMN-0008Fs-Mo for freebsd-questions@freebsd.org; Tue, 16 Jan 2007 23:00:51 +0100 Received: from 89-172-60-11.adsl.net.t-com.hr ([89.172.60.11]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 16 Jan 2007 23:00:51 +0100 Received: from ivoras by 89-172-60-11.adsl.net.t-com.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 16 Jan 2007 23:00:51 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: Ivan Voras Date: Tue, 16 Jan 2007 23:04:11 +0100 Lines: 52 Message-ID: References: <53186.86.54.4.134.1168964729.squirrel@www.midden.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigC8296D1B92D487B3533C96F5" X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: 89-172-60-11.adsl.net.t-com.hr User-Agent: Thunderbird 1.5.0.9 (Windows/20061207) In-Reply-To: <53186.86.54.4.134.1168964729.squirrel@www.midden.org> X-Enigmail-Version: 0.94.1.2 Sender: news Subject: Re: Very Poor Raid Card Performance 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: Tue, 16 Jan 2007 22:01:03 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigC8296D1B92D487B3533C96F5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Steven Lowry wrote: > The main problem is my HD performance, it is approx 6x slower than in > windows XP, hopefully there is a solution. I have an LSI Megaraid 8x wi= th > four drives in a raid 5 configuration, in windows I was getting upto 60= MB/s > transfer rates but in FBSD I am getting upto 9MB/s. I followed the > instructions in the handbook for tuning disks and I have set dma on. > Being new to unix, I have no idea what to try or get system information= > too continue troubleshooting. > If anyone could point me in the right direction or to appropriate > documentation it would be much appreciated. First, you could try asking the question at performance/at/freebsd.org mailing list - you could get more help there. This reminds me of something I've seen on a box that's also equipped with LSI Megaraid but since disk I/O wasn't important for it, I didn't dig further and forgot about it. Maybe the driver has a problem and people on the performance list can help you. Here's a general checklist of what information to gather before sending it to performance list: * dmesg snippet (like you sent) * copy with "cp" in console, not with KDE and see if it changes anything * run 'iostat' while copying and send results * install and run "bonnie++" (disk I/O benchmark) and send results --------------enigC8296D1B92D487B3533C96F5 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFrUvildnAQVacBcgRAsh8AKDj87pN738EG6ouhBfBEl4ZcE25xQCfciDs 4n+QEQl5gnzrdpf6LdBrY8M= =j8gc -----END PGP SIGNATURE----- --------------enigC8296D1B92D487B3533C96F5--