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    SubjectRe: Scheduler ( was: Just a second ) ...
    On Mon, 17 Dec 2001, Linus Torvalds wrote:

    > The most likely cause is simply waking up after each sound interrupt: you
    > also have a _lot_ of time handling interrupts. Quite frankly, web surfing
    > and mp3 playing simply shouldn't use any noticeable amounts of CPU.

    It must be noted that wking up a task is going to take two lock operations
    ( and two unlock ), one in try_to_wakeup() and the other one in schedule().
    This double the frequency seen by the lock.

    - Davide

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