Messages in this thread | | | Date | Wed, 8 Dec 2021 09:38:52 +0100 | Subject | Re: [PATCH v3] mm: fix panic in __alloc_pages | From | David Hildenbrand <> |
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>> >> I think we'll soon might see setups (again, CXL is an example, but als >> owhen providing a dynamic amount of performance differentiated memory >> via virtio-mem) where this will most probably matter. With performance >> differentiated memory we'll see a lot more nodes getting used in >> general, and a lot more nodes eventually getting hotplugged. > > There are certainly machines with many nodes. E.g. SLES kernels are > build with CONFIG_NODES_SHIFT=10 which is a lot of potential nodes. > And I have seen really large machines with many nodes but those usually > come with a lot of memory and they do not tend to have non populated > nodes AFAIR.
Right, and is about to change as nodes are getting used to represent memory with differing performance characteristics/individual devices, not the traditional "this is a socket" setup: we'll see more and more small (virtual) machines with multiple nodes and eventually many possible nodes.
-- Thanks,
David / dhildenb
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