Memory-aware dynamic voltage scaling for multimedia applications

J. Choi, Hojung Cha

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

As the computing environments are continuously moving towards battery-operated mobile and handheld systems, the development of energy-saving mechanisms for such devices has recently become a technical challenge. Dynamic voltage scaling (DVS) has historically been considered an effective method to reduce the processor power consumption. Conventional DVS techniques typically consider only processor utilisation issues in a policy-making process. However, as memory-bound multimedia applications are becoming popular in handheld devices, the DVS policies should consider the so-called 'memory wall' problem to maximise energy gain. Recent DVS techniques suffer from the inefficiency of their policies caused by the memory-wall problem while executing multimedia applications, and no previous research on DVS considers the problem explicitly. The existence of the memory wall problem in a real system is revealed and a metric that can be used to detect the problem in advance is found. A memory-aware DVS (M-DVS) technique that takes the memory wall problem fully into consideration is proposed. The experimental results on a PDA show that M-DVS can reduce ∼8% of additional power consumption, compared with conventional DVS, without any QoS degradation for handling multimedia clips.

Original languageEnglish
Pages (from-to)130-136
Number of pages7
JournalIEE Proceedings: Computers and Digital Techniques
Volume153
Issue number2
DOIs
Publication statusPublished - 2006 Mar 1

Fingerprint

Dynamic Voltage Scaling
Multimedia Applications
Data storage equipment
Power Consumption
Electric power utilization
Handheld Devices
Personal digital assistants
Energy Saving
Voltage scaling
Battery
Multimedia
Energy conservation
Quality of service
Degradation
Maximise
Metric
Computing
Experimental Results
Energy

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Hardware and Architecture
  • Computational Theory and Mathematics

Cite this

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Memory-aware dynamic voltage scaling for multimedia applications. / Choi, J.; Cha, Hojung.

In: IEE Proceedings: Computers and Digital Techniques, Vol. 153, No. 2, 01.03.2006, p. 130-136.

Research output: Contribution to journalArticle

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