A holistic model of the performance and the energy efficiency of hypervisors in a high-performance computing environment

摘要

Virtualization is emerging as the prominent approach to mutualise the energy consumed by a single serverrnrunning multiple virtual machines instances. The efficient utilisation of virtualized servers and/or computingrnresources requires understanding of the overheads in energy consumption and the throughput especiallyrnon high-demanding high-performance computing (HPC) platforms. In this paper, a novel holistic model forrnthe power of virtualized computing nodes is proposed. Moreover, we create and validate instances of thernproposed model using concrete measures taken during a benchmarking process that reflects an HPC usage,rnthat is, HPC challenge, IOZone and Bonnie++, conducted using two different hardware configurations onrnGrid’5000 platform, based on Intel and Advanced Micro Devices (AMD) processors and three widespreadrnvirtualization frameworks, namely, Xen, Kernel-based virtual machine and VMware ESXi. The proposedrnholistic model of machine power takes into account the impact of utilisation metrics of the machine’s components,rnas well as the employed application, virtualization and hardware. The model is further derived usingrntools such as multiple linear regressions or neural networks that prove its elasticity, applicability and accuracy.rnThe purpose of the model is to enable the estimation of energy consumption of virtualized platforms,rnaiming to make possible the optimization, scheduling or accounting in such systems or their simulation.