From owner-freebsd-questions@FreeBSD.ORG Sat Aug 18 15:41:22 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E0A0916A468 for ; Sat, 18 Aug 2007 15:41:22 +0000 (UTC) (envelope-from wmc20@xxiii.com) Received: from fmailhost01.isp.att.net (fmailhost01.isp.att.net [207.115.11.51]) by mx1.freebsd.org (Postfix) with ESMTP id 4A02913C45D for ; Sat, 18 Aug 2007 15:41:22 +0000 (UTC) (envelope-from wmc20@xxiii.com) Received: from wcox.bellsouth.net (adsl-068-209-177-221.sip.ard.bellsouth.net[68.209.177.221]) by bellsouth.net (frfwmhc01) with SMTP id <20070818154121H0100gvfrie>; Sat, 18 Aug 2007 15:41:21 +0000 X-Originating-IP: [68.209.177.221] Message-Id: <6.2.3.4.2.20070818113706.02c7b950@mailsvr.xxiii.com> X-Mailer: QUALCOMM Windows Eudora Version 6.2.3.4 Date: Sat, 18 Aug 2007 11:41:24 -0400 To: From: Rob In-Reply-To: <4B90A9A7-D8D6-49C5-B097-00094486EF4A@messier.com> References: <4B90A9A7-D8D6-49C5-B097-00094486EF4A@messier.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Subject: Re: performance hints (6.2) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Aug 2007 15:41:23 -0000 At 04:00 PM 8/17/2007, Mark Messier wrote: >I've got a freebsd 6.2 system, dual 2Ghz 5130 cpu, 4g ram, with raid5 >Adaptec 2120s, running not much more than /usr/ports/mail/imap-uw >and I'm having performance problems with only 20 IMAP users. As previously suggested, Raid 5's performance sucks for almost every application. What mailfile format are you using - mbox / mdir? And while it might be a major change, consider dumping UW and using Dovecot http://dovecot.org/ UW's performance, scalability, and security have been less than great for many years. -RW