Coordinating DRAM and last-level-cache policies with the virtual write queue

Abstract

To alleviate bottlenecks in this era of many-core architectures, the authors propose a virtual write queue to expand the memory controller's scheduling window through visibility of cache behavior. Awareness of the physical main memory layout and a focus on writes can shorten both read and write average latency, reduce memory power consumption, and improve overall system performance. © 2011 IEEE.