Virtual machines require a certain amount of available overhead memory to power on. You should be aware of the amount of this overhead.
The following table lists the amount of overhead memory a virtual machine requires to power on. After a virtual machine is running, the amount of overhead memory it uses might differ from the amount listed in the table. The sample values were collected with VMX swap enabled and hardware MMU enabled for the virtual machine. (VMX swap is enabled by default.)
|Memory (MB)||1 VCPU||2 VCPUs||4 VCPUs||8 VCPUs|