Messages in this thread | | | Date | Tue, 15 Jun 1999 02:07:23 +0200 (CEST) | From | Davide Libenzi <> | Subject | Re: More new schedule() results ... |
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Hi,
Pavel Machek wrote:
>> Probably You know better then me how many time schedule() is called in a >> Linux workstation ( system calls ). >> Lowering the time the cpu execute schedule() is not as lowering user mode >> code because schedule() code is mostly interrupt protected. >> This means a low speed in acknoledging IRQ and hence a worse system response >> to events.
>schedule() definitely may not be run from interrupt context...
this is passed as OT, but the call to spin_lock_irqsave(runqueue_lock), I suppose that is going to disable IRQs.
Cheers, Davide.
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