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    SubjectRe: Interesting analysis of linux kernel threading by IBM
    Date
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    "Davide Libenzi" <davidel@maticad.it> said:

    [...]

    > my patch has great performance ( 80% with 300 tasks ) with a lot of tasks
    > and low overhead ( 1.5% with 2 tasks ).
    > And my patch has 0.00 optimizations about CPU fetches and Co.
    > IMVHO 1-1.5 % of overhead is a price the we can afford given the performace
    > with many tasks.
    > My patch equals the current implementation with 8 tasks.

    So it is a net loss. This machine here (a personal workstation) has
    typically 1 to 3 running tasks.

    Hondreds of tasks is just not a typical (perhaps even realistic)
    workload.
    --
    Dr. Horst H. von Brand mailto:vonbrand@inf.utfsm.cl
    Departamento de Informatica Fono: +56 32 654431
    Universidad Tecnica Federico Santa Maria +56 32 654239
    Casilla 110-V, Valparaiso, Chile Fax: +56 32 797513

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