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SubjectRe: [PATCH] ktimers subsystem 2.6.14-rc2-kt5
Ingo Molnar wrote:
> * Roman Zippel <zippel@linux-m68k.org> wrote:
> >
>>The other thing is that this assumes, that all time sources are
>>programmable per cpu, otherwise it will be more complicated for a time
>>source to run the timers for every cpu, I don't know how safe that
>>assumption is. Changing the array of structures into an array of
>>pointers to the structures would allow to switch between percpu bases
>>and a single base.
>
>
> yeah, and that's an assumption that simplifies things on SMP
> significantly. PIT on SMP systems for HRT is so gross that it's not
> funny. If anyone wants to revive that notion, please do a separate patch
> and make the case convincing enough ...
>
Lets not talk about PIT, but, a lot of SMP platforms do NOT have per cpu timers. For those, it
would seem having per cpu lists to handle the timer is not really reasonable.

--
George Anzinger george@mvista.com
HRT (High-res-timers): http://sourceforge.net/projects/high-res-timers/
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