2003-2004 Academic Year

POWER MANAGEMENT FOR REAL-TIME SYSTEMS
Speaker: Dr. Hakan Aydin

ABSTRACT
With the advent of portable/embedded systems that have to
rely on battery power, power management has become a focus point
of numerous research projects in the academia and industry. At the
system level, existing techniques usually exploit various performance
trade-offs to save power. In this talk, we will give an overview of our
recent research on power management for real-time systems where tasks have
timing constraints. We will first present a scheduling framework based on
Dynamic Voltage Scaling (DVS) technique, where the supply voltage and the
speed of the CPU are adjusted on-the-fly for power-efficiency. Then we will

discuss the implications for systems with multiple processors. We will
conclude by considering energy-constrained settings where the system
has to remain functional with scarce energy resources  while
delivering an acceptable level of performance.