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authorRik van Riel <riel@redhat.com>2014-10-17 03:29:53 -0400
committerIngo Molnar <mingo@kernel.org>2014-10-28 10:47:51 +0100
commit54009416ac3b5f219c0df68559ce534287ae97b1 (patch)
tree73e6e82d23da0459a6c3e0d58b827e9bdde9b7a0 /include
parent6c6b1193e71fed1a58dc3fab9d967d245177f87b (diff)
sched/numa: Find the preferred nid with complex NUMA topology
On systems with complex NUMA topologies, the node scoring is adjusted to allow workloads to converge on nodes that are near each other. The way a task group's preferred nid is determined needs to be adjusted, in order for the preferred_nid to be consistent with group_weight scoring. This ensures that we actually try to converge workloads on adjacent nodes. Signed-off-by: Rik van Riel <riel@redhat.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: mgorman@suse.de Cc: chegu_vinod@hp.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1413530994-9732-6-git-send-email-riel@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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