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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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