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Summary: Chapter 7
POWERMANAGEMENT POINTSINPOWER-
AWARE REAL-TIME SYSTEMS
Rami Melhem, Nevine AbouGhazaleh, Hakan Aydin, Daniel Mosse
Department of Computer Science
University of Pittsburgh
Pittsburgh, PA 15260
{melhem, mosse}@cs.pitt.edu
Abstract Managing power consumptionwhile simultaneouslydelivering acceptablelevels
of performance is becoming a critical issue in several application domains such
as wireless computing. We integrate compiler-assisted techniques with power-
aware operating system services and present scheduling techniques to reduce
energy consumption of applications that have deadlines. We show by simula-
tion that our dynamic power managementschemes dramatically decrease energy
consumption.
Keywords: Processor Power, Dynamic Speed Setting, Speculation, Voltage Scaling
1. Introduction
As the remarkable advances in VLSI and communication technologies have
culminated in a proliferation of mobile, embedded and wireless computers in
the last decade, system designers are faced with a relatively new and difficult
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