1. Energy and Migration Cost-Aware Dynamic Virtual Machine Consolidation in Heterogeneous Cloud Datacenters
- Author
-
Yunni Xia, Quanwang Wu, Qingsheng Zhu, and Fuyuki Ishikawa
- Subjects
020203 distributed computing ,Information Systems and Management ,Cost estimate ,Computer Networks and Communications ,Computer science ,business.industry ,Distributed computing ,Real-time computing ,Cloud computing ,02 engineering and technology ,Energy consumption ,computer.software_genre ,Computer Science Applications ,Hardware and Architecture ,Virtual machine ,Genetic algorithm ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Greedy algorithm ,business ,computer ,Efficient energy use ,Live migration - Abstract
Energy efficiency has become one of the major concerns for today's cloud datacenters. Dynamic virtual machine (VM) consolidation is a promising approach for improving the resource utilization and energy efficiency of datacenters. However, the live migration technology that VM consolidation relies on is costly in itself, and this migration cost is usually heterogeneous as well as the datacenter. This paper investigates the following bi-objective optimization problem: how to pay limited migration costs to save as much energy as possible via dynamic VM consolidation in a heterogeneous cloud datacenter. To capture these two conflicting objectives, a consolidation score function is designed for an overall evaluation on the basis of a migration cost estimation method and an upper bound estimation method for maximal saved power. To optimize the consolidation score, a greedy heuristic and a swap operation are introduced, and an improved grouping genetic algorithm (IGGA) based on them is proposed. Lastly, empirical studies are performed, and the evaluation results show that IGGA outperforms existing VM consolidation methods.
- Published
- 2019