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    SubjectRe: IDE performance drop between 2.4.23 and 2.6.0 - pinpointed!
    On sob, 03 sty 2004 at 11:46:36  +0100, szonyi calin wrote:
    > --- Pawel Dziekonski <pawel.dziekonski@pwr.wroc.pl> a écrit : >
    > hi,
    > >
    > > same problem here however it seems that i have pinpointed it
    > > )at least
    > > for me):
    > >

    > from the manpage of hdparm: -t Perform timings of device reads for
    > benchmark and compari- son purposes. For meaningful results,
    > this operation should be repeated 2-3 times on an otherwise inactive
    > sys- tem (no other active processes) with at least a couple of
    > megabytes of free memory.

    > if the above conditions are not met your test is irrelevant

    those conditions were met. trust me - i have just copied and pasted some
    of the results :^)

    ps. btw, for last 5 years 2.6.0 this is a 1st example of a situation
    where hdparm gives me so unstable results. i think this is because of
    the nature of as-scheduler. maybe i'm wrong.

    --
    Pawel Dziekonski <pawel.dziekonski|@|pwr.wroc.pl>, KDM WCSS avatar:0:0:
    Wroclaw Networking & Supercomputing Center, HPC Department
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