Messages in this thread |  | | Date | Mon, 20 Jan 2003 18:04:36 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: [patch] sched-2.5.59-A2 |
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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.)
Ingo
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