Title
Hybrid power management in real time embedded systems: an interplay of DVFS and DPM techniques
Abstract
Energy-aware scheduling of real time applications over multiprocessor systems is considered in this paper. Early research reports that while various energy-saving policies, for instance Dynamic Power Management (DPM) and Dynamic Voltage & Frequency scaling (DVFS) policies, perform well individually for a specific set of operating conditions, they often outperform each other under different workload and/or architecture configuration. Thus, no single policy fits perfectly all operating conditions. Instead of designing new policies for specific operating conditions, this paper proposes a generic power/energy management scheme that takes a set of well-known existing (DPM and DVFS) policies, each of which performs well for a set of conditions, and adapts at runtime to the best-performing policy for any given workload. Experiments are performed using state-of the-art DPM and DVFS policies and the results show that our proposed scheme adapts well to the changing workload and always achieves overall energy savings comparable to that of best-performing policy at any point in time.
Year
DOI
Venue
2011
10.1007/s11241-011-9116-y
Realtime systems
Keywords
Field
DocType
Real time systems,Dynamic voltage & frequency scaling,Dynamic power management,Machine learning,Energy,Power,Multiprocessor scheduling
Energy management,Multiprocessor scheduling,Workload,Scheduling (computing),Computer science,Voltage,Multiprocessing,Hybrid power,Real-time computing,Frequency scaling,Distributed computing,Embedded system
Journal
Volume
Issue
ISSN
47
2
0922-6443
Citations 
PageRank 
References 
7
0.48
21
Authors
3
Name
Order
Citations
PageRank
Muhammad Khurram Bhatti1496.06
Cécile Belleudy28412.98
Michel Auguin323835.10