From owner-freebsd-performance@FreeBSD.ORG Tue Oct 19 21:09:05 2004 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5741016A4CE for ; Tue, 19 Oct 2004 21:09:05 +0000 (GMT) Received: from CPE000103d44c07-CM000f9f7ae88c.cpe.net.cable.rogers.com (CPE000103d44c07-CM000f9f7ae88c.cpe.net.cable.rogers.com [69.193.222.195]) by mx1.FreeBSD.org (Postfix) with ESMTP id 18D7C43D58 for ; Tue, 19 Oct 2004 21:09:05 +0000 (GMT) (envelope-from mikej@rogers.com) Received: from 192.168.0.1 (localhost [127.0.0.1]) with ESMTP id 7C42D29542A; Tue, 19 Oct 2004 17:08:57 -0400 (EDT) Received: from 192.168.0.188 (SquirrelMail authenticated user mikej); by 192.168.0.1 with HTTP; Tue, 19 Oct 2004 17:08:57 -0400 (EDT) Message-ID: <4311.192.168.0.188.1098220137.squirrel@192.168.0.188> In-Reply-To: <20041019210312.GG39270@octanews.net> References: <20041019193501.GC78974@cybernetik.net> <41756EBF.3010008@jonny.eng.br> <20041019205225.GB39270@octanews.net> <20041019210111.GA80878@cybernetik.net> <20041019210312.GG39270@octanews.net> Date: Tue, 19 Oct 2004 17:08:57 -0400 (EDT) From: "Mike Jakubik" To: "Mike Horwath" User-Agent: SquirrelMail/1.4.3a X-Mailer: SquirrelMail/1.4.3a MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-wettoast-MailScanner-Information: Please contact the ISP for more information X-wettoast-MailScanner: Found to be clean X-MailScanner-From: mikej@rogers.com cc: Kristofer Pettijohn cc: freebsd-performance@freebsd.org cc: Mike Horwath Subject: Re: Disk I/O Performance X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Oct 2004 21:09:05 -0000 Mike Horwath said: > On Tue, Oct 19, 2004 at 04:01:11PM -0500, Kristofer Pettijohn wrote: >> > His 5 disk stripe (well, it used to be five when I managed the >> > machine) should not have issues, but this recently begun happening >> > both on his systems and some of mine. >> > >> > Very odd stuff... >> >> Still is 5.. >> >> No matter what configuration I use I average 35 MB writing, 13-14 MB >> reading.. its suckin. > > I am working on some ideas, I'll drop you email once I have testing > done. There is a discussion on -current going on right now regarding disk performance issues. Perhaps this is related. Look for the thread "FreeBSD 5.3b7and poor ata performance".