Live virtual machine (VM) migration is a technique for transferring an active VM from one physical host to another without disrupting the VM. In principle, live VM migration enables dynamic resource requirements to be matched with available physical resources, leading to better performance and reduced energy consumption. However, in practice, the resource consumption and latency of live VM migr...

Cloud computing is a quickly emerging field in computer science. It offers a wide variety of advantages over the traditional computing systems. Fast provisioning of resources, low upfront payment, minimal infrastructure management issues and so on. These enticing benefits offered by cloud computing has made it viable for many small organizations and keen individual developers as well. All of th...


 Modern virtual machine (VM) management software includes components that enable consolidation of VMs for power savings or load-balancing for performance. While the existing literature provides various methods for computing a better load-balanced, or consolidated goal state, it fails to adequately suggest the best path from the system's current state to the desired goal allocation. This paper ...

Virtualization can provide significant benefits in data centers by enabling virtual machine migration to eliminate hotspots. We present Sandpiper, a system that automates the task of monitoring and detecting hotspots, determining a new mapping of physical to virtual resources and initiating the necessary migrations. Sandpiper implements a black-box approach that is fully OSand application-agnos...

Live migration has been proposed to reduce the downtime for migrated VMs by pre-copying the generated run-time memory state files from the original host to the migration destination host. However, if the rate for such a dirty memory generation is high, it may take a long time to accomplish live migration because a large amount of data needs to be transferred. In extreme cases when dirty memory ...

Datacenters provide an IT backbone for today’s business and economy, and are the principal electricity consumers for Cloud computing. Various studies suggest that approximately 30% of the running servers in US datacenters are idle and the others are under-utilized, making it possible to save energy and money by using Virtual Machine (VM) consolidation to reduce the number of hosts in use. Howev...

Cloud computing services will play an important role to meet various requirements of the clients in daily lives. In cloud computing, virtualization is an important issue to minimize cost incurred to manage data centers across the world. The energy consumption has become the reason for higher cost in operating data centers. Savings can be achieved by continuous consolidation with live migration ...