Adaptive Linear Address Map for Bank Interleaving in DRAMs

The conventional linear address map can degrade memory utilization and system performance when an access pattern is not linear. To improve memory system performance, the adaptive bank-interleaved linear address map for a DRAM technology is proposed. In our approach, the addresses are efficiently rearranged using the bank-flipping technique for a given application and a memory configuration. The system can configure the address map based on the bank interleaving metric in the systematic way when an application is invoked. Considering image processing applications, the algorithm, the analysis, the design, and the evaluation of the proposed address map are presented. The experimental results show that the presented method can effectively improve the performance with a moderate hardware cost.