Efficient Space Allocation and Reclamation Mechanism for Flash Memory
Xiang Xian-yan · Journal of Chinese Computer Systems · 2010
With rapid increase of the density of flash memory and the emergence of new flash-based applications such as enterprise computing and web data management,it becomes a critical issue to provide efficient management for large-scale flash memory. This paper focuses on the low performance in garbage collection and space utilization of existing flash memory space managment methods,and presents a novel efficient space allocation and reclaimation mechanism,called BSFTL. BSFTL provides different management schemes with hot and cold blocks. The experimental results showed that BSFTL could significantly reduce garbage collection overhead,keeping space utilization at high level.