Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756628AbXFRCIt (ORCPT ); Sun, 17 Jun 2007 22:08:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752992AbXFRCIn (ORCPT ); Sun, 17 Jun 2007 22:08:43 -0400 Received: from netops-testserver-3-out.sgi.com ([192.48.171.28]:42647 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752883AbXFRCIm (ORCPT ); Sun, 17 Jun 2007 22:08:42 -0400 Date: Sun, 17 Jun 2007 19:08:41 -0700 (PDT) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: Matt Mackall cc: Arjan van de Ven , Andrew Morton , linux-kernel@vger.kernel.org, hch@infradead.org Subject: Re: [patch 00/14] Page cache cleanup in anticipation of Large Blocksize support In-Reply-To: <20070617050255.GM11166@waste.org> Message-ID: References: <20070614193839.878721298@sgi.com> <20070614130645.cabdff1b.akpm@linux-foundation.org> <20070614143248.736312f8.akpm@linux-foundation.org> <1182043500.2743.7.camel@laptopd505.fenrus.org> <20070617050255.GM11166@waste.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 597 Lines: 15 On Sun, 17 Jun 2007, Matt Mackall wrote: > Is it? Last I looked it had reverted to handing out reverse-contiguous > pages. I thought that was fixed? Bill Irwin was working on it. But the contiguous pages usually only work shortly after boot. After awhile memory gets sufficiently scrambled that the coalescing in the I/O layer becomes ineffective. - 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/