A Low Power-Consuming Embedded System Design by Reducing Memory Access Frequencies(Computer Systems)
スポンサーリンク
概要
- 論文の詳細を見る
When an embedded system is designed, system performance and power consumption have to be taken carefully into consideration. In this paper, we focus on reducing the number of memory access times in embedded systems to improve performance and save power. We use the locality of running programs to reduce the number of memory accesses in order to save power and maximize the performance of an embedded system. We use shorter code words to encode the instructions that are frequently executed and then pack continuous code words into a pseudo instruction. Once the decompression engine fetches one pseudo instruction, it can extract multiple instructions. Therefore, the number of memory access times can be efficiently reduced because of space locality. However, the number of the most frequently executed instructions is different due to the program size of different applications; that is, the number of memory access times increases when there are less encoded instructions in a pseudo instruction. This situation results in a degradation of system performance and power consumption. To solve this problem, we also propose the use of multiple reference tables. Multiple reference tables will result in the most frequently executed instructions having shorter encoded code words, thereby improving the performance and power of an embedded system. From our simulation results, our method reduces the memory access frequency by about 60% when a reference table with 256 instructions is used. In addition, when two reference tables that contain 256 instructions each are used, the memory access ratio is 10.69% less than the ratio resulting from one reference table with 512 instructions.
- 社団法人電子情報通信学会の論文
- 2005-12-01
著者
-
Ku Chang
Department Of Computer Science And Information Engineering Chaoyang University Of Technology
-
Ku Chang
Department Of Advanced Organic Materials Engineering Chonbuk National University
-
Chen Ching
Department Of Family Medicine National Taiwan University Hospital And National Taiwan University Col
-
CHANG Chih
Department of Computer Science and Information Engineering, Chaoyang University of Technology
-
Chen Ching
Department Of Electro-optical Engineering National Taipei University Of Technology
-
Chang Chih
Department Of Computer Science And Information Engineering Chaoyang University Of Technology
-
Chen Ching
Department Of Information Engineering And Computer Science Feng Chia University
-
Chang Chih
Department Of Civil Engineering Hong Kong University Of Science And Technology
関連論文
- Exploitation of polyphenol-rich pine barks for potent antioxidant activity
- Fiber Optical CATV System Performance Improvement by Using Push-Pull Modulated DFB Laser Diodes(Fiber-Optic Transmission for Communications)
- Mental illness in a general hospital's family medicine clinic in Taiwan
- A Low Power-Consuming Embedded System Design by Reducing Memory Access Frequencies(Computer Systems)
- Anoxia survival in common carp and crucian carp is related to high zinc concentration in tissues
- An Efficient Void Filling Algorithm for WDM Optical Packet Switches Operating under Variable-Packet-Length Self-Similar Traffic(Switching for Communications)
- DESIGN AND MODELING OF A SMALL-SCALE ROTARY MAGNETORHEOLOGICAL DAMPER