From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o876pI4R228089 for ; Tue, 7 Sep 2010 01:51:18 -0500 Received: from smtp3-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DC659D902D6 for ; Tue, 7 Sep 2010 00:03:05 -0700 (PDT) Received: from smtp3-g21.free.fr (smtp3-g21.free.fr [212.27.42.3]) by cuda.sgi.com with ESMTP id cPAN5QvAAkMsHiJz for ; Tue, 07 Sep 2010 00:03:05 -0700 (PDT) Date: Tue, 7 Sep 2010 08:46:43 +0200 From: Emmanuel Florac Subject: Re: LWN.net article: creating 1 billion files -> XFS looses Message-ID: <20100907084643.1f6cfa93@galadriel.home> In-Reply-To: <20100906220410.GD7362@dastard> References: <201008191312.49346@zmi.at> <20100906154254.5542426c@harpe.intellique.com> <20100906220410.GD7362@dastard> Mime-Version: 1.0 List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Dave Chinner Cc: xfs@oss.sgi.com Le Tue, 7 Sep 2010 08:04:10 +1000 vous =E9criviez: > Oh, that's larger than I've ever run before ;) Excellent :) Still works fine afterwards; mount, umount, etc works flawlessly. Memory consumption though is huge :) > = > Try using: > = > # mkfs.xfs -d size=3D64k > = > Will speed up large directory operations by at least an order of > magnitude. OK, we'll try that too :) = > > Now we're starting afresh with 1000 directories with 1 million files > > each :) > = > Which is exactly the test that was used to generate the numbers that > were published. > = > > (Kernel version used : vanilla 2.6.32.11 x86_64 smp) > = > Not much point in testing that kernel - delayed logging is where the > future is for this sort of workload, which is what I'm testing. I'll compile a 2.6.36rc for comparison. -- = ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs