From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Snitzer Subject: Re: [LSF/MM TOPIC] Re: Announcement: STEC EnhanceIO SSD caching software for Linux kernel Date: Mon, 21 Jan 2013 08:09:51 -0500 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> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Amit Kale Cc: "linux-bcache@vger.kernel.org" , "Darrick J. Wong" , Joe Thornber , LKML , device-mapper development , "lsf-pc@lists.linux-foundation.org" , "kent.overstreet@gmail.com" List-Id: linux-bcache@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.