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    SubjectRe: [LSF/MM TOPIC] Re: [dm-devel] Announcement: STEC EnhanceIO SSD caching software for Linux kernel
    On Mon, Jan 21 2013 at 12:26am -0500,
    Amit Kale <akale@stec-inc.com> 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 <darrick.wong@oracle.com> 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.


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