From owner-freebsd-performance@FreeBSD.ORG Thu Sep 29 03:43:16 2005 Return-Path: X-Original-To: freebsd-performance@freebsd.org 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 73BCF16A41F for ; Thu, 29 Sep 2005 03:43:16 +0000 (GMT) (envelope-from anderson@centtech.com) Received: from mh2.centtech.com (moat3.centtech.com [207.200.51.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id B7C0643D48 for ; Thu, 29 Sep 2005 03:43:15 +0000 (GMT) (envelope-from anderson@centtech.com) Received: from [192.168.42.23] (andersonbox3.centtech.com [192.168.42.23]) by mh2.centtech.com (8.13.1/8.13.1) with ESMTP id j8T3hEed017961; Wed, 28 Sep 2005 22:43:15 -0500 (CDT) (envelope-from anderson@centtech.com) Message-ID: <433B62CB.2010807@centtech.com> Date: Wed, 28 Sep 2005 22:43:07 -0500 From: Eric Anderson User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.11) Gecko/20050914 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Francisco Reyes References: <15412.1126634818@www56.gmx.net> <20050922214142.N50836@zoraida.natserv.net> <43336294.2020403@centtech.com> <20050923080227.T58927@zoraida.natserv.net> <4333F3B4.600@centtech.com> <20050928153649.U52985@zoraida.natserv.net> <433AF5B7.8010906@centtech.com> <20050928160821.N52985@zoraida.natserv.net> In-Reply-To: <20050928160821.N52985@zoraida.natserv.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.82/1104/Wed Sep 28 17:20:40 2005 on mh2.centtech.com X-Virus-Status: Clean Cc: FreeBSD Performance Subject: Re: High load average mail server 5.3-RELEASE 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, 29 Sep 2005 03:43:16 -0000 Francisco Reyes wrote: > On Wed, 28 Sep 2005, Eric Anderson wrote: > >> Keep in mind that 5-STABLE, and 6.x (and -CURRENT) have a max of 256 >> nfsd's, so if you want to go higher, you have to modify a line in nfsd.c. > > > So far only a handfull of clients are expected. I am going to start at > 10. :-) > > Other than "killall -9 nfsd" is there any other way to restart nfsd? /etc/rc.d/nfsd restart > On another thread you mentioned the rsize and wsize and that they should > go in the fstab at the client. I got the parameters to work based on a > doc on the web, but was wondering about size. 32K a good parameter for > an IMAP machine? Yes, that should work just fine for you. You may also want to mount the filesystem being shared via NFS on the server with the 'noatime' option. > The setup will be a mail storage server with 3 to 5 machines running > Courier IMAP and connecting to a shared mail folder over NFS. Should be no problem then. So far, I have had great performance with the 5-STABLE branch and 6- branch of FreeBSD for NFS serving. For an IMAP mail store, FreeBSD's near-out-of-box configuration (with the tweaks we've already talked about) should work wonders. Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Anything that works is better than anything that doesn't. ------------------------------------------------------------------------