Groupe d’études et de recherche en analyse des décisions


Online Traffic Aware Virtual Machine Placement in Multi Data Center Cloud Computing Networks


Cloud Computing applications are inherently oriented to send and receive information between multiple virtual machines and geographically distributed users. That exchange of information produces a delay with a big impact on the overall application performance and in the quality of service perceived by the users. This article presents a Tabu-Search based algorithm to distribute the virtual machines in multiple data centers with the objective to increase the quality of service, and also considering the energy cost. A network with more than 1,000 nodes is simulated, and 50,000 applications are added using more than 12,000,000 virtual machines. The results report an average delay that is 35% of the delay obtained with the First Fit policy, and a reduction of 18% in the energy cost.

, 18 pages