Evaluate what hypervisor (virtual machine monitor) settings provide best performance
Beware vertical scalability limitations of ESX v3.5
Memory management such as Transparent Page Sharing and Memory Ballooning may cause instability in the guest system and should be avoided. It's recommended to configure the virtual machine to use static memory allocation.
Dedicated Resource Pool is required for optimal performance
Useful for Change Control Environments and Disaster Recovery. Discouraged in Production
Virtual environments are slower compared to physical computer due to overhead of the hypervisor used
Validate that production applications perform as expected
Acceptable applications performance on user interaction
Compare performance if application is run on a non-virtual server
See Virtualisation (Citrix) for more information around virtualisation, as well as CITRIX and Qlik.