Energy-Efficient Buffer Architecture for Flash Memory

Abstract

Lower energy consumption is an important consideration in the design of mobile devices. Flash memory is essential in such applications, and one solution for reducing energy consumption is to include a buffer layer in the flash memory storage system. The traditional read/write buffer architecture is not suitable for flash memory, so we developed an optimal-read only-write buffer architecture tailored to the properties of flash memory described in this study. We propose an adaptive Grey decision policy for efficiently decrease the number of write operations to reduce energy consumption by 15% and 35% compared to the least recently used and flash-aware buffer policies, based on our optimal-read only-write buffer architecture.