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    SubjectRe: BKL removal
    On Sun, Jul 07, 2002 at 11:06:32PM -0400, Alexander Viro wrote:
    > The thing being, if you are already contended you are playing "I'll release
    > CPU now" vs. "I'll spin in hope that contender will go away right now".
    >
    > IOW, it's a win only if you get contention often and for short intervals.
    > Which is a very good indication that something is rotten with your locking
    > scheme. Like, say it, having lost the control over the amount of locks
    > as the result of brainde^Woverenthusiastic belief that fine-grained ==
    > good. With everything that follows from that...

    So let's get some numbers. It really shouldn't be hard to make our
    current semaphores spin a little before they sleep. If we get some
    numbers showing it does help then either we need this change in mainline
    or we need to fix our locking.

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