From owner-freebsd-performance@FreeBSD.ORG Thu Oct 23 21:08:12 2008 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5F336106566B for ; Thu, 23 Oct 2008 21:08:12 +0000 (UTC) (envelope-from gofp-freebsd-performance@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id DF0758FC12 for ; Thu, 23 Oct 2008 21:08:11 +0000 (UTC) (envelope-from gofp-freebsd-performance@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1Kt6bS-0004MO-KA for freebsd-performance@freebsd.org; Thu, 23 Oct 2008 20:16:18 +0000 Received: from 89-172-36-129.adsl.net.t-com.hr ([89.172.36.129]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 23 Oct 2008 20:16:18 +0000 Received: from ivoras by 89-172-36-129.adsl.net.t-com.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 23 Oct 2008 20:16:18 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-performance@freebsd.org From: Ivan Voras Date: Thu, 23 Oct 2008 22:16:04 +0200 Lines: 50 Message-ID: References: <490097CC.9010802@opnet.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigBF73107E178F8ECD076657C6" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 89-172-36-129.adsl.net.t-com.hr User-Agent: Thunderbird 2.0.0.17 (Windows/20080914) In-Reply-To: <490097CC.9010802@opnet.com> X-Enigmail-Version: 0.95.7 Sender: news Subject: Re: Disk Throughput test X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Oct 2008 21:08:12 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigBF73107E178F8ECD076657C6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Stephen Sanders wrote: > FreeBSD 6.3 > Dual Quad Core Xeon 5450@3Ghz FreeBSD 6.3 isn't very suited for your CPU. If your workload isn't completely CPU bound (i.e. if isn't Seti@Home), you will not only not make use of all 8 CPU cores but will probably get worse performance with 8 CPUs than with 2 CPUs. Upgrade to at least 7.0 and you'll probably need 7.1-BETA2 to maximally use your CPU. But if you don't have much IO contention it's probably not related to your problem. > 16GB RAM You're using the AMD64 version, right? > 3Ware 9650SE-ML / 256MB cache > 14 Seagate 750GB/7200RPM/ST375033ONS SATA drives Which RAID mode? What is the total size of your array? > We have an application that is streaming data to disk at the maximum > rate the controller can sustain. The controller should be able to > develop something on the order of 600MB/s but we're only getting 450MB/= s. Can you use something like bonnie++ to test your configuration? --------------enigBF73107E178F8ECD076657C6 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkkA24QACgkQldnAQVacBci2pwCg79uZSULbVFQ1Cdsf45WpHuQk IXIAoNiD9TS20h2pdD9E5HNE3s3zH9xl =0g1w -----END PGP SIGNATURE----- --------------enigBF73107E178F8ECD076657C6--