Performance analysis of local, network and distributed file systems running inside user’s virtual machines in cloud environment

Abstract

Cloud computing, a recently developed paradigm, mainly focuses on resource allocation on demand. Operating Systems running in Virtual Machines can enhance their performances by adjusting resources as and when required. Due to this ever changing resource complexity, it becomes very difficult to model and analyze performance of some of the important components of Operating Systems, especially the File System. This paper presents a model, based on Queuing Theory, for performance analysis of Local, Network and Distributed File Systems running in Operating Systems of user's VMs. This model takes into consideration parameters like average service time, average waiting time and VM migration time in file system's performance. It also takes into consideration different failures in Cloud environment like Virtual Machine Failures, Hypervisor Failures and Communication Failures. Each File system operation is considered as a service request sent by specific Virtual Machine to the Hypervisor. The performance is evaluated based on the average time taken to service the entire request. A numerical depicting the performance analysis based on this concept has also been illustrated.

Distributed Virtual Environment Basketball Equipment Embedded Systems’ Research and Development

“…Interactivity, that is to say, can realize independent communication and interaction between multiple users and has a complete sense of reality. Autonomy means that the objects in the virtual environment have the right to choose independently and can change related parameter settings and attributes by themselves [10,11]. e distributed virtual reality system mainly has the following three characteristics:…”