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    SubjectRe: [git patches] IDE update
    On Fri, Jul 08 2005, Ingo Molnar wrote:
    >
    > * Jens Axboe <axboe@suse.de> wrote:
    >
    > > But! I used hdparm -t solely, 2.6 was always ~5% faster than 2.4. But
    > > using -Tt slowed down the hd speed by about 30%. So it looks like some
    > > scheduler interaction, perhaps the memory timing loops gets it marked
    > > as batch or something?
    >
    > to check whether that could be the case, could you try:
    >
    > nice -n -20 hdparm -t /dev/hdc
    >
    > does that produce different results?

    Same result, see my next mail, it turned out to be a read-ahead bug.

    --
    Jens Axboe

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