Research on Resource Optimization Method under Cloud Computing Environment

Specific to the existed method, which easily occurs the preference to some sort resources when weighing node resources resulting in lower resource utilization phenomenon, this paper put forward one sort of node ranking based mapping methods TK-Match and corresponding several modified methods. TK-Match firstly ranked the network nodes according to multiple resources through the way of Top-k dominated model, and on the basis of which, conducted mapping to virtual network based on NMT. This mapping process included two aspects, node mapping and link circuit mapping, and took node selection factor NF as the selection standard of physical node when mapping nodes, however, NF comprehensively considered two factors including RS value of physical nodes and the hop counts mapping from link circuit between NMT and PCNP to physical route of DCN. And it also compared TK-Match method and other modified methods in details through test during the process of solving the properties on resource distribution issue.