Messages in this thread | | | Date | Tue, 18 Dec 2001 10:13:51 -0800 (PST) | From | Davide Libenzi <> | Subject | Re: Scheduler ( was: Just a second ) ... |
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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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