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SubjectRe: [patch] sched-2.5.59-A2

On Mon, 20 Jan 2003, Ingo Molnar wrote:

> ie. SMP is just the first level in the cache-hierarchy, NUMA is the
> second level. (lets hope we dont have to deal with a third caching level
> anytime soon - although that could as well happen once SMT CPUs start
> doing NUMA.)

or as Arjan points out, like the IBM x440 boxes ...

i think we want to handle SMT on a different level, ie. via the
shared-runqueue approach, so it's not a genuine new level of caching, it's
rather a new concept of multiple logical cores per physical core. (which
needs is own code in the scheduler.)


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