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 language | English |
|---|---|
| Pages (from-to) | 130-136 |
| Number of pages | 7 |
| Journal | IEE Proceedings: Computers and Digital Techniques |
| Volume | 153 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2006 Mar 1 |
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All Science Journal Classification (ASJC) codes
- Theoretical Computer Science
- Hardware and Architecture
- Computational Theory and Mathematics
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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 journal › Article
TY - JOUR
T1 - Memory-aware dynamic voltage scaling for multimedia applications
AU - Choi, J.
AU - Cha, Hojung
PY - 2006/3/1
Y1 - 2006/3/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=33644895686&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33644895686&partnerID=8YFLogxK
U2 - 10.1049/ip-cdt:20050031
DO - 10.1049/ip-cdt:20050031
M3 - Article
AN - SCOPUS:33644895686
VL - 153
SP - 130
EP - 136
JO - IEE Proceedings: Computers and Digital Techniques
JF - IEE Proceedings: Computers and Digital Techniques
SN - 1350-2387
IS - 2
ER -