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    SubjectAnother ocfs2 performance bug
    Hi guys,

    Reading all the files in a big directory tree takes at least four times
    as long on ocfs2 as ext3.

    # ocfs2: Copy a kernel tree to /dev/null
    mount -tocfs2 /dev/hdb /big
    time find /big/linux-2.6.16-rc3 -type f -exec cp {} /dev/null \;

    real 1m54.933s <===
    user 0m0.896s
    sys 0m1.844s

    time find /big/linux-2.6.16-rc3 -type f -exec cp {} /dev/null \;

    real 0m14.301s
    user 0m5.172s
    sys 0m9.093s

    # ext3: Copy a kernel tree to /dev/null
    mount -text3 /dev/hdb /big
    time find /big/linux-2.6.16-rc3 -type f -exec cp {} /dev/null \;

    real 0m23.899s <===
    user 0m4.672s
    sys 0m9.513s

    time find /big/linux-2.6.16-rc3 -type f -exec cp {} /dev/null \;

    real 0m14.198s
    user 0m5.168s
    sys 0m8.977s

    Regards,

    Daniel
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