Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261278AbVBVSqE (ORCPT ); Tue, 22 Feb 2005 13:46:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261281AbVBVSqE (ORCPT ); Tue, 22 Feb 2005 13:46:04 -0500 Received: from fire.osdl.org ([65.172.181.4]:61570 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S261278AbVBVSp6 (ORCPT ); Tue, 22 Feb 2005 13:45:58 -0500 Date: Tue, 22 Feb 2005 10:45:35 -0800 From: Andrew Morton To: Paul Jackson Cc: mingo@elte.hu, raybry@sgi.com, mort@wildopensource.com, linux-kernel@vger.kernel.org, hilgeman@sgi.com Subject: Re: [PATCH/RFC] A method for clearing out page cache Message-Id: <20050222104535.0b3a3c65.akpm@osdl.org> In-Reply-To: <20050222032633.5cb38abb.pj@sgi.com> References: <20050214154431.GS26705@localhost> <20050214193704.00d47c9f.pj@sgi.com> <20050221192721.GB26705@localhost> <20050221134220.2f5911c9.akpm@osdl.org> <421A607B.4050606@sgi.com> <20050221144108.40eba4d9.akpm@osdl.org> <20050222075304.GA778@elte.hu> <20050222032633.5cb38abb.pj@sgi.com> X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 650 Lines: 16 Paul Jackson wrote: > > As Martin wrote, when he submitted this patch: > > The motivation for this patch is for setting up High Performance > > Computing jobs, where initial memory placement is very important to > > overall performance. > > Any left over cache is wrong, for this situation. So... Cannot the applicaiton remove all its pagecache with posix_fadvise() prior to exitting? - 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/