A DYNAMIC CPU AND MEMORY ALLOCATION SCHEME FOR IMPROVING THE PERFORMANCE OF VIRTUAL MACHINES IN THE CLOUD COMPUTING

• Main Authors: Hsin-yu Tsai, 蔡心瑜
• Other Authors: Liang-Teh Lee
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/56283930598975794983

碩士 === 大同大學 === 資訊工程學系(所) === 101 === The cloud computing has rapidly developed for these years, and has had urgent needs for virtual machines. Properly utilizing the valuable resource of a physical machine over a virtualized environment and promoting the efficiency on a cloud computing are the important topics. However, the most researches focused on CPU allocation only. Although by adjusting CPU resource can raise the system performance up to a certain level, it still cannot enhance the performance of massive memory usage. In this thesis a Dynamic CPU and Memory Resource Allocation Mechanism （DCMRAM）has been proposed. The dynamic CPU allocation mechanism (Dynamic Adjustment of Virtual Machine Computing Resources, DAVMCR) and the dynamic memory allocation based on Extenics and ballooning mechanism (Extenics-Based Dynamic Memory Allocation Scheme, EBDMAS) are integrated in the proposed sysem to enhance the system performance. Both DAVMCR and EBDMAS mechanisms were implemented over the XEN platform. The experiment results showed that the proposed method had improved the performance of a virtual system. The combination of DAVMCR and EBDMAS had better execution time than any one of them which has been applied alone.