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    SubjectRe: Why Semaphore Hardware-Dependent?
    On Sun, 27 Aug 2006, Andi Kleen wrote:

    > x86-64 always uses the spinlocked version (vs i386 using the atomic one)
    > and I haven't heard of anybody complaining.

    Ia64 has special counters for rwsemaphores. I'd like to see if there is
    any performance loss. mmap_sem is a rwsemaphore. This is performance

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      Last update: 2006-08-28 00:17    [W:0.019 / U:9.520 seconds]
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