From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Thu, 26 Jun 2008 04:28:58 -0700 (PDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.168.28]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with ESMTP id m5QBSidE007488 for ; Thu, 26 Jun 2008 04:28:44 -0700 Received: from deliver.uni-koblenz.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DBFBF11D6412 for ; Thu, 26 Jun 2008 04:29:44 -0700 (PDT) Received: from deliver.uni-koblenz.de (deliver.uni-koblenz.de [141.26.64.15]) by cuda.sgi.com with ESMTP id PPNoq84TgG0UEbWH for ; Thu, 26 Jun 2008 04:29:44 -0700 (PDT) Message-ID: <48637DA6.8040300@uni-koblenz.de> Date: Thu, 26 Jun 2008 13:29:42 +0200 From: Christoph Litauer MIME-Version: 1.0 Subject: Re: Performance problems with millions of inodes References: <4862598B.80905@uni-koblenz.de> <48625A46.1060206@uni-koblenz.de> <20080625180222.12885793@harpe.intellique.com> In-Reply-To: <20080625180222.12885793@harpe.intellique.com> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 8bit Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: Emmanuel Florac Cc: xfs@oss.sgi.com Emmanuel Florac schrieb: > Le Wed, 25 Jun 2008 16:46:30 +0200 > Christoph Litauer écrivait: > >>> Maybe the 143 million inodes cause this effect? Any idea how to >>> avoid it? > > Maybe you should try to add a "nobarrier" option at mount on the > slowest machine. Barriers can slow down operation tremendously... > Thanks for this hint. nobarrier improved file creation performance significantly (about 50 times). -- Regards Christoph ________________________________________________________________________ Christoph Litauer litauer@uni-koblenz.de Uni Koblenz, Computing Center, http://www.uni-koblenz.de/~litauer Postfach 201602, 56016 Koblenz Fon: +49 261 287-1311, Fax: -100 1311 PGP-Fingerprint: F39C E314 2650 650D 8092 9514 3A56 FBD8 79E3 27B2