Performance Isolation Framework for Virtualized Server Applications

Abstract

Recently, most IT organizations are transforming their data centers to smaller virtualized ones with the help of server virtualization. In virtualized servers, multiple applications are consolidated into a physical server by sharing and multiplexing their physical resources. For such environment, performance isolation among consolidated applications is the desirable thing to meet Service Level Agreements (SLAs) of those applications. This paper describes the way to control the total amount of CPU resource consumption in privileged and driver domains of each virtual machine (VM). By limiting the CPU resource usage of each VM in both domains, performance isolation among cohosted application can be achieved. To accomplish this purpose, state space representation of Multi-Input Multi-Output (MIMO) controller is designed. The proposed framework is implemented and tested on a testbed which used Xen virtualization environment as an ongoing work