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On the Interplay of Dynamic Voltage Scaling and Dynamic Power Management in Real-Time Embedded Applications
 

Summary: On the Interplay of Dynamic Voltage Scaling and Dynamic
Power Management in Real-Time Embedded Applications

Vinay Devadas, Hakan Aydin
Dept. of Computer Science, George Mason University
Fairfax, VA, USA
{vdevadas,aydin}@cs.gmu.edu
ABSTRACT
Dynamic Voltage Scaling (DVS) and Dynamic Power Man-
agement (DPM) are two popular techniques commonly em-
ployed to save energy in real-time embedded systems. DVS
policies aim at reducing the CPU energy, while DPM-based
solutions involve putting the system components (e.g. mem-
ory or I/O devices) to low-power/sleep states at run-time,
when sufficiently long idle intervals can be predicted. De-
spite numerous research papers that tackled the energy min-
imization problem using DVS or DPM separately, the inter-
actions of these two popular techniques are not yet well un-
derstood. In this paper, we undertake an exact analysis of
the problem for a real-time embedded application running on

  

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

 

Collections: Computer Technologies and Information Sciences; Engineering