期刊論文
| 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 | en_US |
| ISSN | 0018-9340 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 | 否 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/107496 ) |