>> >> 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
