From mboxrd@z Thu Jan 1 00:00:00 1970 From: TJ Subject: Re: Looking for the cause of poor I/O performance Date: Fri, 3 Dec 2004 01:33:07 -0500 Message-ID: <200412030133.07743.systemloc@earthlink.net> References: <200412030354.iB33sD913132@www.watkins-home.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200412030354.iB33sD913132@www.watkins-home.com> Content-Disposition: inline Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org Cc: Guy List-Id: linux-raid.ids > My linux system is a P3-500 with 2 CPUs and 512 Meg RAM. My system is much > faster than my network. I don't know how your K6-500 compares to my > P3-500. But RAM may be your issue. That amount of ram seems very low. Are > you swapping? What is your CPU load during the tests? If you are at 100%, > then you are CPU bound. You've got a dual CPU setup, mine is only single. I'll bet you have a server chipset too. Still, I have serious doubts that the CPU is at fault. My guess would be that this could be a VIA chipset problem. The load averages while running these tests are allways well below 1. I mistyped the amount of memory. I have approx 409 MB. I am not swapping. > Your disk performance is faster than a 100BaseT network. So, your > performance may not be an issue. The network is gigabit, with a crossover to the client machine. I used ttcp to verify that the link is capable of over 146 MB/sec. TJ