Virtual Memory Streaming Technique for Virtual Machines (VMs) for Rapid Scaling and High Performance in Cloud Environment

摘要

This paper addresses the impact of Virtual Memory Streaming (VMS) techniquein provisioning virtual machines (VMs) in cloud environment. VMS is a scalingvirtualization technology that allows different virtual machines rapid scale,high performance, and increase hardware utilization. Traditional hypervisors donot support true no-downtime live migration, and its lack of memoryoversubscription can hurt the economics of a private cloud deployment bylimiting the number of VMs on each host. VMS brings together several advancedhypervisor memory management techniques including granular page sharing,dynamic memory footprint management, live migration, read caching, and a uniquevirtual machine cloning capability. An architecture model is described,together with a proof-of-concept implementation, that VMS dynamically scalingof virtualized infrastructure with true live migration and cloning of VMs. Thispaper argues that VMS for Cloud allows requiring significantly reduced servermemory and reducing the time for virtualized resource scaling by instantlyadding more virtual machines.