From owner-freebsd-performance@FreeBSD.ORG Thu Oct 23 22:32:30 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 080C3106569F for ; Thu, 23 Oct 2008 22:32:30 +0000 (UTC) (envelope-from ssanders@softhammer.net) Received: from smtpauth11.prod.mesa1.secureserver.net (smtpauth11.prod.mesa1.secureserver.net [64.202.165.33]) by mx1.freebsd.org (Postfix) with SMTP id 86DDC8FC14 for ; Thu, 23 Oct 2008 22:32:29 +0000 (UTC) (envelope-from ssanders@softhammer.net) Received: (qmail 28055 invoked from network); 23 Oct 2008 22:05:49 -0000 Received: from unknown (96.241.55.13) by smtpauth11.prod.mesa1.secureserver.net (64.202.165.33) with ESMTP; 23 Oct 2008 22:05:48 -0000 From: Stephen Sanders To: Ivan Voras In-Reply-To: References: <490097CC.9010802@opnet.com> Content-Type: text/plain Organization: Softhammer.Net Date: Thu, 23 Oct 2008 18:01:59 -0400 Message-Id: <1224799319.3229.5.camel@pepin.softhammer.net> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 (2.22.3.1-1.fc9) Content-Transfer-Encoding: 7bit Cc: freebsd-performance@freebsd.org Subject: Re: Disk Throughput test X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ssanders@softhammer.net List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Oct 2008 22:32:30 -0000 Good point. I plan to switch to 7.0, though the system is running the ULE scheduler. The cpu's are amd64. I tested early on with bonnie++ and was getting similar numbers to the application test. It's a good idea to try it again so I will. The RAID is a RAID 6 as the application calls for data integrity though I do plan on doing a RAID 0 test as well. The array is something like 7TB total. Thanks. On Thu, 2008-10-23 at 22:16 +0200, Ivan Voras wrote: > 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? >