From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755255Ab3AUNzb (ORCPT ); Mon, 21 Jan 2013 08:55:31 -0500 Received: from mx1.redhat.com ([209.132.183.28]:10178 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754120Ab3AUNz1 (ORCPT ); Mon, 21 Jan 2013 08:55:27 -0500 Date: Mon, 21 Jan 2013 08:09:51 -0500 From: Mike Snitzer To: Amit Kale Cc: "Darrick J. Wong" , device-mapper development , "linux-bcache@vger.kernel.org" , "kent.overstreet@gmail.com" , LKML , "lsf-pc@lists.linux-foundation.org" , Joe Thornber Subject: Re: [LSF/MM TOPIC] Re: [dm-devel] Announcement: STEC EnhanceIO SSD caching software for Linux kernel Message-ID: <20130121130951.GA16574@redhat.com> References: <50F844A3.9020300@warr.net> <50F970A3.4000403@warr.net> <20130118161135.GA3118@raspberrypi> <50F97C0F.9010405@warr.net> <50F9963A.2080608@warr.net> <20130118212543.GB6425@blackbox.djwong.org> <20130118213759.GA30278@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 21 2013 at 12:26am -0500, Amit Kale wrote: > > -----Original Message----- > > From: Mike Snitzer [mailto:snitzer@redhat.com] > > Sent: Saturday, January 19, 2013 3:08 AM > > To: Darrick J. Wong > > Cc: device-mapper development; Amit Kale; linux-bcache@vger.kernel.org; > > kent.overstreet@gmail.com; LKML; lsf-pc@lists.linux-foundation.org; Joe > > Thornber > > Subject: Re: [LSF/MM TOPIC] Re: [dm-devel] Announcement: STEC EnhanceIO > > SSD caching software for Linux kernel > > > > On Fri, Jan 18 2013 at 4:25pm -0500, > > Darrick J. Wong wrote: > > > > > Since Joe is putting together a testing tree to compare the three > > > caching things, what do you all think of having a(nother) session > > > about ssd caching at this year's LSFMM Summit? > > > > > > [Apologies for hijacking the thread.] > > > [Adding lsf-pc to the cc list.] > > > > Hopefully we'll have some findings on the comparisons well before LSF > > (since we currently have some momentum). But yes it may be worthwhile > > to discuss things further and/or report findings. > > We should have performance comparisons presented well before the > summit. It'll be good to have ssd caching session in any case. The > likelihood that one of them will be included in Linux kernel before > April is very low. dm-cache is under active review for upstream inclusion. I wouldn't categorize the chances of dm-cache going upstream when the v3.9 merge window opens as "very low". But even if dm-cache does go upstream it doesn't preclude bcache and/or enhanceio from going upstream too.