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    SubjectRe: [patch] swap-speedup-2.4.3-B3 (fwd)

    On Thu, 26 Apr 2001, Mike Galbraith wrote:

    > On Thu, 26 Apr 2001, Marcelo Tosatti wrote:
    > > > (I can get it to under 9 with MUCH extremely ugly tinkering. I've done
    > > > this enough to know that I _should_ be able to do 8 1/2 minutes ~easily)
    > >
    > > Which kind of changes you're doing to get better performance on this test?
    > :)
    > real 11m33.589s
    > user 7m57.790s
    > sys 0m38.730s
    > 2.4.4.pre7.sillyness
    > real 9m30.336s
    > user 7m55.270s
    > sys 0m38.510s

    Have you tried to tune SWAP_SHIFT and the priority used inside swap_out()
    to see if you can make pte deactivation less aggressive ?

    If you get the desired effect tuning those values and you end up with the
    conclusion that this tuning is a good change for most "common workloads",
    it can be integrated in the main kernel.

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