lkml.org 
[lkml]   [2003]   [Feb]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest]
    Andrew Morton wrote:

    >Andrea Arcangeli <andrea@suse.de> wrote:
    >
    >
    >>BTW, one thing that should definitely do readhaead and it's
    >>not doing that (at least in 2.4) is the readdir path, again to generate
    >>big commands, no matter the seeks. It was lost with the directory in
    >>pagecache.
    >>
    >>
    >
    >Yes. But ext3 is still doing directory readahead, and I have never
    >noticed it gaining any particular benefit over ext2 from it.
    >
    >And neither fs performs inode table readahead.
    >-
    >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/
    >
    >
    >
    >
    reiser4 does directory readahead. It gets a lot of gain from it.

    --
    Hans


    -
    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 13:33    [W:0.021 / U:30.040 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site