Efficient Idle Desktop Consolidation with Partial VM Migration
Eyal de Lara
University of Toronto
10:30AM Thursday 31 May
Recent surveys have found that enterprise desktops spend most of their time idle. Despite the fact that idle PCs consume up to 60% of their peak power, these systems have been found to remain powered in order to allow applications with network presence to remain online (e.g. IM, VoIP, remote desktop). Virtual machine (VM) consolidation has been proposed as a solution for this problem by using virtualization to migrate the user’s computational environment to a server while the desktop is suspended to low power mode. Unfortunately, energy-oriented full VM migration does not scale well in office environments; desktop VMs require large amounts of memory, resulting in low consolidating ratios, and network congestion that lead to long resume latencies.
I will present Partial VM Migration, an approach that transparently migrates only the working set of an idle VM, and show that this approach is better suited to enterprise offices. Partial VM Migration is effective at reducing energy use of idle desktops, leads to small migration sizes and migration latencies, and provides high VM consolidation ratios on the server.
Eyal de Lara is an Associate Professor in the Department of Computer Science at the University of Toronto. Eyal received his Ph.D. and M.Sc. from Rice University in 2002 and 1999, and a B.Sc. from the Instituto
Tecnologico de Monterrey in 1995. His research interests include distributed systems and mobile computing. His research has been recognized with an IBM Faculty Award and a NSERC Discovery Accelerator