Earticle

초록

영어

Both performance and capacity of the main memory are the key to the computer systems in current architecture. DRAM, which is the most used main memory, can’t extend in capacity for its high energy consumption and repeatedly refresh. Fortunately, some new memory mediums, such as phase-change memory (PRAM), are used to replace traditional DRAM memory. These new memories have many advantages, like low energy consumption, without repeatedly refresh, high density storage, and so on. Therefore, these memories are promising. However, their low read/write performance and limited life are restricted the replacement process. In current time, hybrid memory, which consists of both PRAM and DRAM, is a good choice. In this way, the memory capacity can be extended. So, the most challenge for the hybrid memory is the performance. In this paper, we propose a dynamic hybrid LRU caching scheme (DH-LRU) for the last level cache in PRAM/DRAM hybrid main memory to improve the main memory performance. Compared with traditional cache policies, like LRU, FIFO, RANDOM, CFLRU, our DH-LRU improves performance by 4.6%. Moreover, energy consumption of write and read operation can be reduced up to 88.2%.

목차

Abstract
 1. Introduction
 2. Motivation
  2.1. Traditional Caching Schemes in PDRAM
 3. Related Works
  3.1. LRU Caching Scheme
  3.2. Clean-First LRU Caching Scheme
  3.3. Caching Schemes Based On Frequency Values
  3.4. Shortcomings and Usage
 4. Dynamic Hybrid LRU Caching scheme
  4.1. Principles of Design
  4.2. Implementation
 5. Experiment Settings
  5.1. System Configuration
  5.2. Configurations
  5.3. Experiment
 6. Results & Analyses
  6.1. Performance Improvement
  6.2. The Effects of Different Proportion and Position P
  6.3. The Effects of Different Threshold
  6.4. Utilization of PRAM
  6.5. Overhead of DH-LRU
  6.6. Energy Consumption of DH-
 7. Conclusion
 References

키워드

저자

• Yongjian Ren [ Department of Computer Science and Technology, Hangzhou Dianzi University, Hangzhou, China ]
• Hongtianchen Xie [ Department of Computer Science and Technology, Hangzhou Dianzi University, Hangzhou, China ]
• Gangyong Jia [ Department of Computer Science and Technology, Hangzhou Dianzi University, Hangzhou, China / Key Laboratory of Complex Systems Modeling and Simulation, Ministry of Education ]
• Jilin Zhang [ Department of Computer Science and Technology, Hangzhou Dianzi University, Hangzhou, China / Key Laboratory of Complex Systems Modeling and Simulation, Ministry of Education ]
• Yuyu Yin [ Department of Computer Science and Technology, Hangzhou Dianzi University, Hangzhou, China / Key Laboratory of Complex Systems Modeling and Simulation, Ministry of Education ]
• Jian Wan [ School of Information and Electronic Engineering, Zhejiang University of Science and Technology, Hangzhou ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Grid and Distributed Computing

• 간기

  격월간

• pISSN

  2005-4262

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605