Aspects include allocating virtual resources to physical resources in a computer environment and aggregating the virtual resources, as a virtual resource pool, at a per virtual machine level in the computer environment. Other aspects include evaluating the virtual resources in the virtual resource pool against resource pool domain constraints. Other aspects include determining a resource allocation adjustment as a function of the evaluating. The resource allocation adjustment is configured to achieve a maximum specified virtual machine density. Other aspects include adjusting the virtual resources based on the resource allocation adjustment.