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    SubjectRe: [announce] [patch] ultra-scalable O(1) SMP and UP scheduler
    On Sun, 6 Jan 2002, Alan Cox wrote:

    > > Ingo, you don't need that many queues, 32 are more than sufficent.
    > > If you look at the distribution you'll see that it matters ( for
    > > interactive feel ) only the very first ( top ) queues, while lower ones
    > > can very easily tollerate a FIFO pickup w/out bad feelings.
    >
    > 64 queues costs a tiny amount more than 32 queues. If you can get it down
    > to eight or nine queues with no actual cost (espcially for non realtime queues)
    > then it represents a huge win since an 8bit ffz can be done by lookup table
    > and that is fast on all processors

    It's here that i want to go, but i'd liketo do it gradually :)

    unsigned char first_bit[255];




    - Davide


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