Dharshan wrote:
1. Host Memory is the amount of physical memory that has been allocated to a virtual machine
2. Guest memory is the memory usage of a virtual machine.
The guest memory in this view is the "active" memory, which is really not the memory usage of the virtual machine, but a estimate on how much amount of the consumed memory that have been recently been accessed inside the VM. The virtual machine might have loaded data in much larger areas of memory than 180 MB in this case, but only about 180 MB have been read or written during a sample interval.