[Libvir] Potential problem on NUMA machines
Philippe Berthault
Philippe.Berthault at Bull.net
Fri Oct 13 08:51:33 UTC 2006
In the virNodeInfo structure, it's assumed that all nodes of
multiprocessor systems have the same number of sockets. But on NUMA
machines, it's not mandatory that all SMP nodes have the same number of
sockets.
So there is a potential problem when computing the number of processors
by using the informations returned in the virNodeInfo structure.
This problem exists also in Xen (in the "xm info" command) but both Xen
and libvirt are wrong.
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