教師資料查詢 | 類別: 期刊論文 | 教師: 衛信文 Wei, Hsin-Wen (瀏覽個人網頁)

標題:Multi-grained Block Management to Enhance the Space Utilization of File Systems on PCM Storages
學年104
學期2
出版(發表)日期2016/06/01
作品名稱Multi-grained Block Management to Enhance the Space Utilization of File Systems on PCM Storages
作品名稱(其他語言)
著者Tseng-Yi Chen; Yuan-Hao Chang; Ming-Chang Yang; Yun-Jhu Chen; Hsin-Wen Wei; Wei-Kuan Shih
單位
出版者
著錄名稱、卷期、頁數IEEE Transactions on Computers 65(6), pp.1831-1845
摘要Phase-change memory (PCM) is a promising candidate as a storage medium to resolve the performance gap between
main memory and storage in battery-powered mobile computing systems. However, it is more expensive than flash memory, and thus
introduces a more serious storage capacity issue for low-cost solutions. This issue is further exacerbated by the fact that existing file
systems are usually designed to trade space utilization for performance over block-oriented storage devices. In this work, we propose
a multi-grained block management strategy to improve the space utilization of file systems over PCM-based storage systems. By
utilizing the byte-addressability and fast read/write feature of PCM, a methodology is proposed to dynamically allocate multiple sizes of
blocks to fit the size of each file, so as to resolve the space fragmentation issue with minimized space and management overheads. The
space utilization of file systems is analyzed with consideration of block sizes. A series of experiments was conducted to evaluate the
efficacy of the proposed strategy, and the results show that the proposed strategy can significantly improve the space utilization of file
systems.
關鍵字Phase-change memory;space utilization;byte-addressability;file systems
語言英文(美國)
ISSN0018-9340;1557-9956
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版,紙本
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