lkml.org 
[lkml]   [2004]   [Jan]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRequest: I/O request recording
    I would like to have a user space program that I could run while I cold
    start KDE. The program would then record which I/O pages were read in
    which order. The output of that program could then be used to pre-cache
    all those pages, but in an order that reduces disk head movement.
    Demand Loading unfortunately produces lots of random page I/O scattered
    all over the disk.

    Having a way to know which pages are accessed in which order at a
    typical cold start would be very benefitial, not only for the purpose
    described above but it could also be used as input for a linker code
    reordering optimization.

    What do you think?

    Felix
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 14:00    [W:0.017 / U:62.628 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site