GFTL：一种基于页组映射的低能耗闪存转换层
Journal Title: Science Paper Online - Year 2011, Vol 6, Issue 10
Abstract
针对NAND闪存不能在本地进行数据更新操作，导致数据合并时消耗大量额外的能量，提出一种简单有效的基于页组地址映射的闪存转换层(GFTL)方案。GFTL将上层文件系统的逻辑地址请求转换为物理页组地址和页组内偏移量。在垃圾回收时，具有最多无效数据页的物理块将被回收并擦除。采用数据访问序列驱动的模拟方法来评估GFTL的性能，并对存储研究领域被广泛使用的DiskSim和SSD-add-on模拟器进行修改。实验结果显示，无论在真实的工作负载下还是在基准测量工作负载下，GFTL相比于其他3种著名的闪存转换层都能够减少18%以上的读、写和擦除操作所消耗的能量。
Authors and Affiliations
Shi Bai , Peng Zhao
Keywords
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