Received: with ECARTIS (v1.0.0; list xfs); Thu, 26 Jun 2008 04:28:58 -0700 (PDT) X-Spam-Checker-Version: SpamAssassin 3.3.0-r574664 (2007-09-11) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.7 required=5.0 tests=AWL,BAYES_00,SUBJ_MILLIONS autolearn=no version=3.3.0-r574664 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 X-ASG-Debug-ID: 1214479783-5a4901f70000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi 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) Received: from localhost (localhost [127.0.0.1]) by deliver.uni-koblenz.de (Postfix) with ESMTP id 89171789A0FE; Thu, 26 Jun 2008 13:29:43 +0200 (CEST) Received: from deliver.uni-koblenz.de ([127.0.0.1]) by localhost (deliver.uni-koblenz.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 28134-04; Thu, 26 Jun 2008 13:29:42 +0200 (CEST) Received: from bruch.uni-koblenz.de (bruch.uni-koblenz.de [141.26.64.66]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by deliver.uni-koblenz.de (Postfix) with ESMTP id ADFB8789A0FC; Thu, 26 Jun 2008 13:29:42 +0200 (CEST) Message-ID: <48637DA6.8040300@uni-koblenz.de> Date: Thu, 26 Jun 2008 13:29:42 +0200 From: Christoph Litauer User-Agent: Thunderbird 2.0.0.14 (Macintosh/20080421) MIME-Version: 1.0 To: Emmanuel Florac CC: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Performance problems with millions of inodes 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 X-Virus-Scanned: ClamAV 0.91.2/6021/Wed Feb 27 15:55:48 2008 on oss.sgi.com X-Virus-Scanned: amavisd-new at uni-koblenz.de X-Barracuda-Connect: deliver.uni-koblenz.de[141.26.64.15] X-Barracuda-Start-Time: 1214479784 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.1, rules version 3.1.54384 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Status: Clean X-archive-position: 16567 X-ecartis-version: Ecartis v1.0.0 Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com X-original-sender: litauer@uni-koblenz.de Precedence: bulk X-list: xfs 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