Re: NO_HZ Kconfig rework

From: Daniel Walker
Date: Thu Jun 29 2006 - 10:20:35 EST


On Thu, 2006-06-29 at 11:42 +0200, Pavel Machek wrote:
> On Mon 2006-06-26 09:16:37, Daniel Walker wrote:
> > I got NO_HZ working on ARM, but because the ARM tree already
> > extensively implements NO_IDLE_HZ I had to make NO_HZ a
> > completely seprate option.
>
> So... what is the difference between NO_HZ and NO_IDLE_HZ?

NO_HZ is a generic version of dynamic tick. NO_IDLE_HZ has some generic
parts but is mostly implemented by the architecture. In this case ARM
fully implements NO_IDLE_HZ, which then collides with NO_HZ if they
depend on each other.

Daniel



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