I need to support multiple EAP 6.3 instances running different versions of an application. Some of the hosts will be on the same physical host. If on physical host-1 I am running two servers, server-1 and serve-r2. app-v2 is deployed to server-1 and app-v3 is deployed to server-2. In this scenario, will running as a domain offer better performance or use fewer resources (memory) than running two standalone servers? Or is the centralized management the only benefit? Thanks.