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Real-Time Dynamic Power Management through Device Forbidden Regions Vinay Devadas Hakan Aydin
 

Summary: Real-Time Dynamic Power Management through Device Forbidden Regions
Vinay Devadas Hakan Aydin
Department of Computer Science
George Mason University
Fairfax, VA 22030
{vdevadas, aydin}@cs.gmu.edu
Abstract
Dynamic Power Management (DPM) techniques are crucial in min-
imizing the overall energy consumption in real-time embedded sys-
tems. The timing constraints of real-time applications and non-trivial
time/energy transition overheads introduce significant challenges, as
the device sleep intervals should be longer than a minimum threshold
(called the break-even time) to ensure energy-efficiency. In this paper,
we present a novel approach to the real-time DPM problem by explic-
itly enforcing long device sleep intervals for different devices, called
device forbidden regions. We focus on the application of our tech-
nique to task systems with Rate-Monotonic priorities, and develop
our algorithm DFR-RMS. Our solution includes a static component
where the duration and frequency of forbidden regions are determined
through the extended time-demand analysis to preserve the tempo-

  

Source: Aydin, Hakan - Department of Computer Science, George Mason University

 

Collections: Computer Technologies and Information Sciences; Engineering