Re: [patch] waitqueue optimization, 2.4.0-test7

From: Ingo Molnar (mingo@elte.hu)
Date: Mon Aug 28 2000 - 12:42:13 EST


On Mon, 28 Aug 2000, Andrea Arcangeli wrote:

> On Mon, 28 Aug 2000, Ingo Molnar wrote:
>
> >a substantial percentage of __wake_up() calls are done on empty waitqueues
>
> Things like process_timeout() knows the task is sleeping [...]

schedule_timeout() is a special case and is part of the 'scheduler
subsystem'. Using wakeup_process() in that case is justified.

        Ingo

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