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The main memory system is a shared resource in modern multicore machines that can result in serious interference leading to reduced throughput and unfairness. Many new memory scheduling mechanisms have been proposed to address the interference problem. However, these mechanisms usually employ relative complex scheduling logic and need modifications to Memory Controllers (MCs), which incur expensive hardware design and manufacturing overheads.

This article presents a practical software approach to effectively eliminate the interference without any hardware modifications. The key idea is to modify the OS memory management system and adopt a page-coloring-based Bank-level Partitioning Mechanism (BPM) that allocates dedicated DRAM banks to each core (or thread). By using BPM, memory requests from distinct programs are segregated across multiple memory banks to promote locality …