On 15.07.2015 [16:35:16 -0400], Tejun Heo wrote: > Hello, > > On Thu, Jul 02, 2015 at 04:02:02PM -0700, Nishanth Aravamudan wrote: > > we currently emit at boot: > > > > [ 0.000000] pcpu-alloc: [0] 0 1 2 3 [0] 4 5 6 7 > > > > After this commit, we correctly emit: > > > > [ 0.000000] pcpu-alloc: [0] 0 1 2 3 [1] 4 5 6 7 > > JFYI, the numbers in the brackets aren't NUMA node numbers but percpu > allocation group numbers and they're not split according to nodes but > percpu allocation units. In both cases, there are two units each > serving 0-3 and 4-7. In the above case, because it wasn't being fed > the correct NUMA information, both got assigned to the same group. In > the latter, they got assigned to different ones but even then if the > group numbers match NUMA node numbers, that's just a coincidence.
Ok, thank you for clarifying! From a correctness perspective, even if the numbers don't match NUMA nodes, should we expect the grouping to be split along NUMA topology? -Nish _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
