Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756822Ab0GVTPg (ORCPT ); Thu, 22 Jul 2010 15:15:36 -0400 Received: from kroah.org ([198.145.64.141]:38169 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754963Ab0GVTPd (ORCPT ); Thu, 22 Jul 2010 15:15:33 -0400 Date: Thu, 22 Jul 2010 12:14:57 -0700 From: Greg KH To: Nitin Gupta Cc: Pekka Enberg , Hugh Dickins , Andrew Morton , Dan Magenheimer , Rik van Riel , Avi Kivity , Christoph Hellwig , Minchan Kim , Konrad Rzeszutek Wilk , linux-mm , linux-kernel Subject: Re: [PATCH 0/8] zcache: page cache compression support Message-ID: <20100722191457.GA13309@kroah.com> References: <1279283870-18549-1-git-send-email-ngupta@vflare.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1279283870-18549-1-git-send-email-ngupta@vflare.org> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 902 Lines: 21 On Fri, Jul 16, 2010 at 06:07:42PM +0530, Nitin Gupta wrote: > Frequently accessed filesystem data is stored in memory to reduce access to > (much) slower backing disks. Under memory pressure, these pages are freed and > when needed again, they have to be read from disks again. When combined working > set of all running application exceeds amount of physical RAM, we get extereme > slowdown as reading a page from disk can take time in order of milliseconds. Given that there were a lot of comments and changes for this series, can you resend them with your updates so I can then apply them if they are acceptable to everyone? thanks, greg k-h -- 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/