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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/99972

    Title: Warranty-aware page management for PCM-based embedded systems
    Authors: Cheng, Sheng-Wei;Chang, Yu-Fen;Chang, Yuan-Hao;Wei, Hsin-Wen;Shih, Wei-Kuan
    Contributors: 淡江大學電機工程學系
    Date: 2014-11-05
    Issue Date: 2015-01-20 10:38:14 (UTC+8)
    Publisher: IEEE Press Piscataway
    Abstract: The thriving growth in mobile consumer electronics makes energy efficiency in the embedded system design an important and recurring theme. Phase Change Memory (PCM) has shown its potential in replacing DRAM as the main memory option due to its (65%) reduced energy requirements. However, when considering the usage of PCM main memory, its write endurance becomes a critical issue, and wear leveling design is a common approach to resolve this issue. Even though the wear leveling design should stress operation efficiency and overhead reduction, existing wear leveling strategies designed for PCM main memory are usually dedicated to prolonging the lifetime of PCM. In this paper, we propose the perspective that, instead of valuing PCM lifetime exploitation as the first priority, we should turn to satisfy the product warranty period. To this end, further enhancement of operation efficiency and reduction of management overhead could be achieved. We thus propose a warranty-aware page management design to enhance the operation efficiency for managing the endurance issue in PCM. To show the effectiveness of the proposed design, we collected real traces on fiasco.OC by running SPEC2006 benchmarks with different write intensity workloads. The experiment results showed that our design reduced the overhead to one third of that of the state-of-the-art designs while still providing the same level of performance.
    Relation: Proceedings of the 2014 IEEE/ACM International Conference on Computer-Aided Design, pp.734-741
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Proceeding

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