Ludmila Cherkasova
Hewlett-Packard Laboratories
1501 Page Mill Road, Palo Alto, CA 94303, USA
lucy.cherkasova@hp.com
Rob Gardner
Hewlett-Packard Laboratories
3404 E Harmony Rd., Fort Collins, CO 80528, USA
rob.gardner@hp.com
Abstract. Virtual Machine Monitors (VMMs) are gaining popularity in enterprise environments as a software-based solution for building shared hardware infrastructures via virtualization. In this work, using the Xen VMM, we present a light weight monitoring system for measuring the CPU usage of different virtual machines including the CPU overhead in the device driver domain caused by I/O processing on behalf of a particular virtual machine. Our performance study attempts to quantify and analyze this overhead for a set of I/O intensive workloads.