Has anyone else noticed an issue when running CentOS 7.2.1511 on ESXi 6.0, where
only the first sockets worth of cores appear to be presented to the kernel?
For example, I've set up a VM on an ESXi 6 node with 2 sockets, each of
which has 2 cores attached. Once I start up the server I can see in dmidecode
that both sockets are populated, each with a dual-core processor. But, within
top, cpuinfo and numactl, I can only see the cores presented from the socket0
chip.
Is there some kind of kernel restriction on multi-socket setups when
virtualized?
Carmen De Vito
Senior Linux Analyst
