The Virtual Machine Compute Optimizer (VMCO) is a VMware Fling that enables the capture of information about the hosts and VMs running in a vSphere environment. It generates a report on the VMs and states if the VMs are optimized.
https://flings.vmware.com/virtual-machine-compute-optimizer
https://4sysops.com/archives/vmware-virtual-machine-compute-optimizer-free-tool/
