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    SubjectRe: (disk/cpu) kernel performance problem
    Hi,

    On Mon, 26 Jul 1999 20:37:26 -0700 (PDT), Gerald Aigner
    <aigner@stanford.edu> said:

    >> If disk I/O were infinitely slow, CPU usage would be 0%,
    >> but that's not a Good Thing, is it..
    >>
    > 45% is the amount of time the kernel spends in loading data from disk.

    Umm, you _have_ enabled IDE DMA, haven't you, either by hdparm -d or by
    enabling it by default in the kernel? 45% seems rather high unless
    you're using polling transfers.

    --Stephen

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