From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752243Ab2HNWTG (ORCPT ); Tue, 14 Aug 2012 18:19:06 -0400 Received: from e9.ny.us.ibm.com ([32.97.182.139]:49928 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752133Ab2HNWTD (ORCPT ); Tue, 14 Aug 2012 18:19:03 -0400 Message-ID: <502ACED1.9060808@linux.vnet.ibm.com> Date: Tue, 14 Aug 2012 17:18:57 -0500 From: Seth Jennings User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120714 Thunderbird/14.0 MIME-Version: 1.0 To: Seth Jennings CC: Greg Kroah-Hartman , Andrew Morton , Nitin Gupta , Minchan Kim , Konrad Rzeszutek Wilk , Dan Magenheimer , Robert Jennings , linux-mm@kvack.org, linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org Subject: Re: [PATCH 0/4] promote zcache from staging References: <1343413117-1989-1-git-send-email-sjenning@linux.vnet.ibm.com> In-Reply-To: <1343413117-1989-1-git-send-email-sjenning@linux.vnet.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12081422-7182-0000-0000-00000248DEDB Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/27/2012 01:18 PM, Seth Jennings wrote: > zcache is the remaining piece of code required to support in-kernel > memory compression. The other two features, cleancache and frontswap, > have been promoted to mainline in 3.0 and 3.5. This patchset > promotes zcache from the staging tree to mainline. > > Based on the level of activity and contributions we're seeing from a > diverse set of people and interests, I think zcache has matured to the > point where it makes sense to promote this out of staging. I am wondering if there is any more discussion to be had on the topic of promoting zcache. The discussion got dominated by performance concerns, but hopefully my latest performance metrics have alleviated those concerns for most and shown the continuing value of zcache in both I/O and runtime savings. I'm not saying that zcache development is complete by any means. There are still many improvements that can be made. I'm just saying that I believe it is stable and beneficial enough to leave the staging tree. Seth