Investigation on the impact of virtualization in cloud data centers

• Main Author: Peng, Bo
• Other Authors: Zhong Wende
• Format: Theses and Dissertations
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering
• Online Access: http://hdl.handle.net/10356/64776
• Institution: Nanyang Technological University

Cloud computing services provide clients with computing resources from cloud data centers operated by service providers. Clients can approach to cloud applications through cloud services. However, energy consumption of cloud data centers is growing dramatically and becoming an important fraction of data center operating cost. Resources of servers are usually lowly utilized due to resource stranding and fragmentation, and over provisioning. Virtualization technique is used to provide effective resource sharing by most of the cloud service providers. In this project, we present a measurement study to characterize the influence of virtualization. We establish a small test bed of virtual servers and investigate how virtualization affects the power consumption within servers and the performance of the system with respect to certain parameters. We measure power consumption, average request delay, throughput, and failed request of the web servers. Our results show that virtual servers can save more power. We envision that these insights would help architecture design of future data centers.