On Tue, 2009-09-01 at 23:03 -0700, David Rientjes wrote: > On Wed, 2 Sep 2009, Benjamin Herrenschmidt wrote: > > > Since I'm pretty sure there could be CPU less nodes just like there > > could be memory-less nodes, it would be good if fake numa could > > simulate them too :-) > > > > You don't want to simulate cpu less nodes since they do have affinity to > ranges of memory, you want to map each fake node to a cpumask including > all cpus with affinity to its memory, map each cpu to one fake node (with > memory) that it has physical affinity to, and then give all fake nodes > local NUMA distance to those on the same physical node. Memoryless nodes > take care of themselves since they rely purely on node_distance(), so the > index into the slit for all fake nodes to those without memory will be the > same.
Ok, makes sense, thanks. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
