From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758358Ab0E1Q1K (ORCPT ); Fri, 28 May 2010 12:27:10 -0400 Received: from kroah.org ([198.145.64.141]:48592 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751526Ab0E1Q1H (ORCPT ); Fri, 28 May 2010 12:27:07 -0400 Date: Fri, 28 May 2010 09:26:57 -0700 From: Greg KH To: Nitin Gupta Cc: Pekka Enberg , Andrew Morton , Minchan Kim , Hugh Dickins , Cyp , driverdev , linux-kernel Subject: Re: [PATCH 0/3] zram: generic RAM based compressed R/W block devices Message-ID: <20100528162657.GA28781@kroah.com> References: <1274710685-2351-1-git-send-email-ngupta@vflare.org> <4BFFEA95.9040505@vflare.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4BFFEA95.9040505@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 On Fri, May 28, 2010 at 09:38:53PM +0530, Nitin Gupta wrote: > Hi All, > > On 05/24/2010 07:48 PM, Nitin Gupta wrote: > > Creates RAM based block devices: /dev/zramX (X = 0, 1, ...). > > Pages written to these disks are compressed and stored in memory > > itself. These disks allow very fast I/O and compression provides > > good amounts of memory savings. > > > > This is enhancement over existing ramzswap driver which creates > > virtual block devices (/dev/ramzswapX) which could be used only > > as swap disks. > > > > Now, with the ability to handle any kind of I/O request, zram > > devices have lot more use cases: > > - /tmp storage > > - various caches under /var > > - swap disks > > - maybe even more! :) > > > > Performance numbers can be found at: > > http://code.google.com/p/compcache/wiki/zramperf > > > > Any reviews/comments, please? We are all busy with the .35-rc1 merge work at the moment, sorry. thanks, greg k-h