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    SubjectRe: Interactive Usage of 2.6.0.test1 worse than 2.4.21


    Peter Chubb wrote:

    >>>>>>"Andrew" == Andrew Morton <akpm@osdl.org> writes:
    >>>>>>
    >
    >Andrew> Martin Konold <martin.konold@erfrakon.de> wrote:
    >
    >>>Hi,
    >>>
    >>>when using 2.6.0.test1 on a high end laptop (P-IV 2.2 GHz, 1GB RAM)
    >>>I notice very significant slowdown in interactive usage compared to
    >>>2.4.21.
    >>>
    >>>The difference is most easily seen when switching folders in
    >>>kmail. While 2.4.21 is instantaneous 2.6.0.test1 shows the clock
    >>>for about 2-3 seconds.
    >>>
    >>>
    >
    >I see the same problem, and I'm using XFS. Booting with
    >elevator=deadline fixed it for me. The anticipatory scheduler hurts
    >if you have a disc optimised for low power consumption, not speed.
    >
    >

    I don't think this generalisation is really fair. All hard disks
    have the same basic properties which AS exploits. There seems to
    be something going wrong though.


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