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    SubjectRe: [RFC] Heads up on sys_fallocate()
    On Wed, 7 March 2007 09:51:35 +0100, Jan Kara wrote:
    >
    > I'll probably first write some userspace fs-reorganizer to find out how
    > much these changes in layout are able to give you in performance (i.e.
    > whether it's worth the effort of more complicated kernel online
    > defragmenter).

    Have tried profiling the read accesses and prereading them
    asynchronously on startup? That appears to have improved E17 a lot.
    See http://lca2007.linux.org.au/talk/101 (and watch the video).

    Jörn

    --
    The competent programmer is fully aware of the strictly limited size of
    his own skull; therefore he approaches the programming task in full
    humility, and among other things he avoids clever tricks like the plague.
    -- Edsger W. Dijkstra
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