Title
Load-aware stochastic feedback control for DVFS with tight performance guarantee
Abstract
Dynamic voltage and frequency scaling (DVFS) has become a primary means for achieving power efficiency on many processor architectures. However, traditional DVFS techniques cannot provide tight performance guarantees while scaling the clock frequency. We present an elegant, theoretical approach to stochastically characterize workloads. Based on load characterization, a systematic feedback control design methodology is developed that leads to stochastic minimization of performance loss. It is demonstrated that our load-aware stochastic approach is able to significantly reduce processor power consumption while delivering a performance guarantee that is much tighter than what it is achievable with classical feedback controller.
Year
DOI
Venue
2012
10.1109/VLSI-SoC.2012.6379035
VLSI-SOC
Keywords
Field
DocType
microcontrollers,load regulation,systematic feedback control design methodology,stochastic processes,dynamic voltage and frequency scaling,power efficiency,stochastic minimization,processor architecture,control system synthesis,tight performance guarantee,load-aware stochastic feedback control,feedback,clocks,performance loss,processor power consumption reduction,dvfs,minimisation,scaling clock frequency,stochastic programming,control theory,quality of service,application software,real time systems,hardware,digital tv,transform coding
Electrical efficiency,Computer science,Control theory,Stochastic process,Control engineering,Minimisation (psychology),Minification,Frequency scaling,Load regulation,Stochastic programming,Clock rate
Conference
ISSN
ISBN
Citations 
2324-8432
978-1-4673-2656-8
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Bin Wu18824.43
Peng Li21912152.85