Abstract: A method for a computing apparatus for evaluating a virtualized application is provided. Accordingly, performance characteristics for a virtual machine as well as predetermined criteria based on resource requirements for a proposed virtualized application can be received through the network interface of the computing apparatus. The method also allows for determining, at the computing apparatus, whether the predetermined criteria are satisfied based on the performance characteristics and transmitting instructions to cause the proposed virtualized application to be set up within the virtual machine if the predetermined criteria are satisfied. Once the virtualized application is set up, it can be monitored and if the performance characteristics do not satisfy the virtualized application's performance requirements, the virtualized application can be caused to be moved to a different virtual machine. Performance characteristics of a virtual machine can also be determined on the basis of a parking database.

Abstract: A method for a computing apparatus, of adopting virtualization resource requirements is provided. Performance indicators at least in part related to a virtualized application are received and a vendor model is updated based on the received performance indicators. The method also allows for generating, based on the updated vendor model, updated resource requirement estimates for the virtualized application. The updated resource requirements serve as a basis for sending, to a cloud service provider, a capacity change request based on the updated resource requirement estimates. The timing for generating and sending updates is managed by an adaptation module and is based on an update policy. The update policy itself can be based on schedules that reflect estimated capacity changes for the virtualized application. The updating can be based on a learning module which can use Kalman filters and other techniques for learning.