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USENIX 2005 Annual Technical Conference, General Track — Abstract

Pp. 387–390 of the Proceedings

Measuring CPU Overhead for I/O Processing in the Xen Virtual Machine Monitor

Ludmila Cherkasova and Rob Gardner, Hewlett-Packard Laboratories


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.
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