PARBLO:Page-Allocation-Based DRAM Row Buffer Locality Optimization  

作　　者：米伟 冯晓兵 贾耀仓 陈莉 薛京灵 

机构地区：[1]Key Laboratory of Computer System and Architecture, Institution of Computing Technology, Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Sciences [3]Programming Languages and Compilers Group, School of Computer Science and Engineering University of New South Wales

出　　处：《Journal of Computer Science & Technology》2009年第6期1086-1097,共12页计算机科学技术学报（英文版）

基　　金：Supported by the National Basic Research 973 Program of China under Grant No. 2005CB321602;the National Natural Science Foundation of China under Grant No. 60736012

摘　　要：DRAM row buffer conflicts can increase memory access latency significantly. This paper presents a new pageallocation-based optimization that works seamlessly together with some existing hardware and software optimizations to eliminate significantly more row buffer conflicts. Validation in simulation using a set of selected scientific and engineering benchmarks against a few representative memory controller optimizations shows that our method can reduce row buffer miss rates by up to 76% （with an average of 37.4%）. This reduction in row buffer miss rates will be translated into performance speedups by up to 15% （with an average of 5%）.DRAM row buffer conflicts can increase memory access latency significantly. This paper presents a new pageallocation-based optimization that works seamlessly together with some existing hardware and software optimizations to eliminate significantly more row buffer conflicts. Validation in simulation using a set of selected scientific and engineering benchmarks against a few representative memory controller optimizations shows that our method can reduce row buffer miss rates by up to 76% （with an average of 37.4%）. This reduction in row buffer miss rates will be translated into performance speedups by up to 15% （with an average of 5%）.

关 键 词：DRAM row buffer page allocation locality optimization 

分 类 号：TP333[自动化与计算机技术—计算机系统结构] TU857[自动化与计算机技术—计算机科学与技术]