Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754947AbZDZGyj (ORCPT ); Sun, 26 Apr 2009 02:54:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753618AbZDZGy0 (ORCPT ); Sun, 26 Apr 2009 02:54:26 -0400 Received: from e3.ny.us.ibm.com ([32.97.182.143]:59362 "EHLO e3.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754614AbZDZGyY (ORCPT ); Sun, 26 Apr 2009 02:54:24 -0400 Subject: Re: Large Pages - Linux Foundation HPC From: Dave Hansen To: Wu Fengguang Cc: Balbir Singh , Badari Pulavarty , linux-kernel , Christoph Lameter , Vivek Kashyap , Mel Gorman , Robert MacFarlan , "Fu, Michael" In-Reply-To: <20090425084804.GA517@localhost> References: <1240331533.32731.2.camel@badari-desktop> <1240333025.32604.392.camel@nimitz> <20090421182555.GA8977@balbir.in.ibm.com> <20090425084804.GA517@localhost> Content-Type: text/plain Date: Sat, 25 Apr 2009 23:54:21 -0700 Message-Id: <1240728861.29485.41.camel@nimitz> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 600 Lines: 15 On Sat, 2009-04-25 at 16:48 +0800, Wu Fengguang wrote: > Based on Dave's descriptions that HPC apps typically > - do mlock(), to pre-populate memory and pin them in memory > - run at fresh boot, with loads of high order pages available There are definitely some of them that do this, but it certainly isn't all. It may not even be the norm. -- Dave -- 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/