Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261914AbVD0SOP (ORCPT ); Wed, 27 Apr 2005 14:14:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261915AbVD0SOP (ORCPT ); Wed, 27 Apr 2005 14:14:15 -0400 Received: from rgminet04.oracle.com ([148.87.122.33]:429 "EHLO rgminet04.oracle.com") by vger.kernel.org with ESMTP id S261914AbVD0SN0 (ORCPT ); Wed, 27 Apr 2005 14:13:26 -0400 Date: Wed, 27 Apr 2005 11:12:45 -0700 From: Mark Fasheh To: Lars Marowsky-Bree Cc: David Teigland , Wim Coekaerts , linux-kernel@vger.kernel.org, akpm@osdl.org Subject: Re: [PATCH 0/7] dlm: overview Message-ID: <20050427181245.GB938@ca-server1.us.oracle.com> Reply-To: Mark Fasheh References: <20050425151136.GA6826@redhat.com> <20050425203952.GE25002@ca-server1.us.oracle.com> <20050426053930.GA12096@redhat.com> <20050426184845.GA938@ca-server1.us.oracle.com> <20050427132343.GX4431@marowsky-bree.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050427132343.GX4431@marowsky-bree.de> Organization: Oracle Corporation User-Agent: Mutt/1.5.9i X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1414 Lines: 32 On Wed, Apr 27, 2005 at 03:23:43PM +0200, Lars Marowsky-Bree wrote: > But yes, scalability, at least roughly O(foo) guesstimates, for numbers > of locks and/or number of nodes would be helpful, both for a) speed, but > also b) number of network messages involved, for recovery and lock > acquisition. > > Mark, do you have the data you ask for for OCFS2's DLM? The short answer is no but that we're collecting them. Right now, I can say that if you take our whole stack into consideration OCFS2 for things like kernel untars and builds (a common test over here), is typically almost as fast as ext3 (single node obviously) even when we have a second or third node mounted. As far as specific DLM timings go, we're in the process of collecting them. As you know, lately we have been deep in a process of stabilizing things :) While we have collected timings independent of the FS in the past, we haven't done that recently enough that I'd feel comfortable posting it. > (BTW, trimming quotes is considered polite on LKML.) Heh, sorry about that - I'll try to do better in the future :) --Mark -- Mark Fasheh Senior Software Developer, Oracle mark.fasheh@oracle.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/