On Fri, 2010-04-16 at 08:32 +0200, Eric Dumazet wrote:
quoted text
> Le vendredi 16 avril 2010 à 14:02 +0800, Changli Gao a écrit :
> 
> > resched IPI, apparently. But it is async absolutely. and its IRQ
> > handler is lighter.
> > 
> 
> You still dont answer to the question, and your claims are not grounded
> by hard facts, but by your interpretation of code.

My understanding of current scheduler is it does use IPIs to migrate
tasks around - so thats why things may be working for Changli. i.e
it is scheduler magic if you use kthreads. It is hard to say if this
would work better...

cheers,
jamal

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