Messages in this thread | | | Date | Sat, 12 Apr 2003 07:54:31 -0700 | From | "Martin J. Bligh" <> | Subject | Re: Processor sets (pset) for linux kernel 2.5/2.6? |
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> HT is accounted as a NUMA SMP system with strong memory affinity > for his 2 cores, so that when running 2 HT processors (2+2 cores), > the tasks are kept preferably on the same HT processor and just bounce > cores, since they share the same cache (don't know exactly L1, L2 or > both, tough).
We don't actually do that right now (though it was discussed) - we treat it as flat SMP. Ingo had some patches to share 1 runqueue between each HT pair, which I think is a better plan for this, but we're not seeing much performance improvment from it.
M.
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