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DAC
2008
ACM

Feedback-controlled reliability-aware power management for real-time embedded systems

9 years 3 months ago
Feedback-controlled reliability-aware power management for real-time embedded systems
In recent literature it has been reported that Dynamic Power Management (DPM) may lead to decreased reliability in real-time embedded systems. The ever-shrinking device sizes contribute further to this problem. In this paper, we present a reliability aware power management algorithm that aims at reducing energy consumption while preserving the overall system reliability. The idea behind the proposed scheme is to utilize the dynamic slack to scale down processes while ensuring that the overall system reliability does not reduce drastically. The proposed algorithm employs a proportional feedback controller to keep track of the overall miss ratio of a system of tasks and provide additional level of faulttolerance based on demand. It was tested with both realworld and synthetic task sets and simulation results have been presented. Both fixed and dynamic priority scheduling policies have been considered for demonstration of results.
Ranjani Sridharan, Nikhil Gupta, Rabi N. Mahapatra
Added 12 Nov 2009
Updated 12 Nov 2009
Type Conference
Year 2008
Where DAC
Authors Ranjani Sridharan, Nikhil Gupta, Rabi N. Mahapatra
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