From owner-freebsd-hackers@FreeBSD.ORG Mon Oct 30 14:41:28 2006 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0443816A417 for ; Mon, 30 Oct 2006 14:41:28 +0000 (UTC) (envelope-from anderson@centtech.com) Received: from mh1.centtech.com (moat3.centtech.com [64.129.166.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id C2BDB43D68 for ; Mon, 30 Oct 2006 14:41:25 +0000 (GMT) (envelope-from anderson@centtech.com) Received: from [10.177.171.220] (neutrino.centtech.com [10.177.171.220]) by mh1.centtech.com (8.13.8/8.13.8) with ESMTP id k9UEfNeQ020172; Mon, 30 Oct 2006 08:41:23 -0600 (CST) (envelope-from anderson@centtech.com) Message-ID: <45460F15.8020109@centtech.com> Date: Mon, 30 Oct 2006 08:41:25 -0600 From: Eric Anderson User-Agent: Thunderbird 1.5.0.7 (X11/20061015) MIME-Version: 1.0 To: Geoff Mohler References: <20061029222751.O17408@mail.vidnet.net> In-Reply-To: <20061029222751.O17408@mail.vidnet.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.88.4/2131/Sun Oct 29 16:00:12 2006 on mh1.centtech.com X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=8.0 tests=AWL,BAYES_00 autolearn=ham version=3.1.6 X-Spam-Checker-Version: SpamAssassin 3.1.6 (2006-10-03) on mh1.centtech.com Cc: freebsd-hackers@freebsd.org Subject: Re: NFS attr cache performance X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Oct 2006 14:41:28 -0000 On 10/29/06 22:31, Geoff Mohler wrote: > Im looking for deep hacks into what I could do to make the 6.x NFS client > hold a larger (or much larger) file/directory attribute cache. > > In very large make "everything" environments with Fbsd, we are about 1/3rd > the speed of local disk coming from a very large Netapp box. > > The same make from a heavily patched/modified Linux NFS client is miles > faster than local disk. > > I have no insight to the Linux modifications, but looking at the nfsstats, > attribute calls are the bulk of the traffic to the NFS mounted file > system. > > Any and all ideas are OK..maybe something simple I overlooked. > > I need to reserve another build server early this week, and go over my > options again on whats not been working, and get the list numbers as well. > > Thanks in advance. See Bruce Evans very recent work on this on freebsd-fs@ mailing list. Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Anything that works is better than anything that doesn't. ------------------------------------------------------------------------