From owner-freebsd-stable@FreeBSD.ORG Wed Mar 5 13:26:49 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B371B106567B for ; Wed, 5 Mar 2008 13:26:49 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 35B658FC22 for ; Wed, 5 Mar 2008 13:26:49 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1JWtdr-0005e6-Hs for freebsd-stable@freebsd.org; Wed, 05 Mar 2008 13:26:43 +0000 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 05 Mar 2008 13:26:43 +0000 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 05 Mar 2008 13:26:43 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-stable@freebsd.org From: Ivan Voras Date: Wed, 05 Mar 2008 14:30:27 +0100 Lines: 44 Message-ID: References: <915419.88748.qm@web50505.mail.re2.yahoo.com> <47CE816A.6050903@tefre.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigD710BA679B38A6A014736D28" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Thunderbird 2.0.0.6 (X11/20071022) In-Reply-To: <47CE816A.6050903@tefre.com> X-Enigmail-Version: 0.95.0 Sender: news Subject: Re: 7.0-Release and 3ware 9550SXU w/BBU - horrible write performance X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Mar 2008 13:26:49 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigD710BA679B38A6A014736D28 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Erik Stian Tefre wrote: > Results from bonnie++ with default settings on my box (7.0-RELEASE, > amd64, 480 MB system memory, BBU, write cache enabled, 7 drive raid-5, > storsave =3D balance, NCQ on): >=20 > Version 1.93d ------Sequential Output------ --Sequential Input- > --Random- > Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- > --Seeks-- > Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP > /sec %CP > xxxxxxxxxxxxxxxx 1G 275 83 72440 23 24990 6 644 83 76548 15 > 460.6 6 Was the array busy when you did the test? 72-76 MB MB/s is very slow for a 7-drive array in RAID-5. FreeBSD's disk IO can be sluggish but I doubt it would get that slow. On a RAID10 array with 6 drives I can get ~~ 200 MB/s in both directions (though on a different controller). RAID5 is basically striped so your setup should on average yield close to 6 times the single drive performance, something in the area of 350 MB/s. --------------enigD710BA679B38A6A014736D28 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFHzqBzldnAQVacBcgRAtB1AJ9gK6FE/RRTraYTAdmHEmb9pSxnBgCg1hA0 uZXD9swUfYB/KF2Q9R+W+Do= =A+M0 -----END PGP SIGNATURE----- --------------enigD710BA679B38A6A014736D28--