Towards Fast De-duplication Using Low Energy Coprocessor

Backup technology based on data de-duplication has become a hot topic in nowadays. In order to get a better performance, traditional research is mainly focused on decreasing the disk access time. In this paper, we consider computing complexity problem in data de-duplication system, and try to improve system performance by reducing computing time. We put computing tasks on commodity coprocessor to speed up the computing process. Compared with general-purpose processors, commodity coprocessors have lower energy consumption and lower cost. Experimental results show that they have equal or even better performance compared with general-purpose processors.