How to get CPU info on a vmware guest

The lscpu, if installed, synthesize somehow the information given by cat /proc/cpuinfo. In particular you can take a look at the fields CPU(s), Core(s) per socket and Socket(s).

Try this one

cat /proc/cpuinfo

Assuming you are running VMware ESXi platform.

First you can try dmidecode -t processor from the guest.

If that doesn't provide what you need, go grab the Viper toolkit or the ViJava toolkit so you can automate queries against the ESXi server to obtain the information you need.