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SubjectRe: what's next for the linux kernel?
On Llu, 2005-10-03 at 22:07 +0100, Luke Kenneth Casson Leighton wrote:
> made? _cool_. actual hardware. new knowledge for me. do you know
> of any online references, papers or stuff? [btw just to clarify:
> you're saying you have a NUMA bus or you're saying you have an
> augmented SMP+NUMA+separate-parallel-message-passing-bus er .. thing]

Its a standard current Intel feature. See "mwait" in the processor
manual. The CPUs are also smart enough to do cache to cache transfers.
No special hardware no magic.

And unless I want my messages to cause interrupts and wake events (in
which case the APIC does it nicely) then any locked operation on memory
will do the job just fine. I don't need funky hardware on a system. The
first point I need funky hardware is between boards and that isn't
consumer any more.


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