Enhancing the Space Utilization of File System on Pcm Storages through Mgbm
نویسندگان
چکیده
IJPRES ABSTRACT─ PCM is rapidly developed as a promising candidate for next-generation storage class memory (SCM) because of its non-volatility, byte-addressability, and high access performance. In recent years, researchers have studied how to use PCM as main memory or hybrid main memory to improve the system performance and energy efficiency. Although some studies have explored the read/write asymmetry of PCM to further optimize the performance of PCM, using PCM as main memory suffers from the write endurance issue. As for the space utilization of file system designs, a number of previous studies proposed different management designs to improve the space utilization of file systems over block-based storage devices. However, to the best of our knowledge, little research has been done trying to optimize the space utilization of file systems by taking advantage of the nice features of PCM. In this paper we propose a multi-grained block management strategy to improve the space utilization of file systems over PCM-based storage systems with minimized space and management overheads.
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