A space-efficient flash memory software for mobile devices

Abstract

Flash memory is becoming popular storage media for mobile computing devices. In this paper, we study a new block management scheme in Flash Translation Layer (FTL) for flash memory storages which considers the space utilization. Proposed scheme classifies data blocks according to their write access frequencies and improves the space utilization by managing the blocks according to their hotness degree. To evaluate the proposed scheme, we developed a simulator and performed trace-driven simulations. © Springer-Verlag Berlin Heidelberg 2005.