Re: regarding do_irq

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On Thu, Sep 9, 2010 at 14:00, Bond <jamesbond.2k.g@xxxxxxxxx> wrote:
> Hi Dave from your message I want to ask going idle suppose I am having a
> Linux box on my system.
> Then display manager,polling and other things are constantly happening which
> are being handled by the CPU so when does
> the kernel goes idle I am not able to understand how can kernel be idle.

I am not Dave, so don't get mistaken :D

Idle? yes, as it is read..."idle"....when your kernel gets idle? when
it does nothing...and you ask again, "really, when?"

"When"...well, if you brought human sense or perception, you find none.

But if you put yourself into digital world which nowadays processor
ticks billion times in seconds,  even 1 ms or less is idle.

Plus, nowadays, there is function to round up expiration time...thus
idle might get longer.

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com

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