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    SubjectRe: [PATCH] 2.4.10 improved reiserfs a lot, but could still be better
    On Mon, 24 Sep 2001, Beau Kuiper wrote:

    > Also, the performace problems seem to be very dependant on the hardware being
    > used. 5400rpm drives get hurt a lot, while 7200 rpm drives seem to handle it
    > better. Decent write caching on IDE devices (like the 2meg buffer on the IBM)
    > can completely hide this issue.

    Decent write caching on IDE devices can eat your whole file system.

    Turn it off (I have no idea of internals, but I presume it'll still be a
    write-through cache, so reading back will still be served from the
    buffer). Do hdparm -W0 /dev/hd[a-h].

    One might consider adding TCQ to the IDE driver. FreeBSD already has it,
    and IBM drives talk it.
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