【作者】 时磊； 逄珺； 杨磊； 张铁军； 侯朝焕；

【Author】 SHI Lei~(1,2),PANG Jun~(1,2),YANG Lei~(1,2),ZHANG Tie-jun~1,HOU Chao-huan1 1.Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China 2.Graduate School of Chinese Academy of Sciences,Beijing 100190,China

【机构】 中国科学院声学研究所； 中国科学院研究生院；

【摘要】 探讨了多核系统中多线程访问共享存储器资源时的公平性问题,研究了公平性对于多个线程的性能的影响,并在已提出的存储器的突发调度策略的基础上,实现了基于该算法并且考虑公平性的存储器访问调度策略,在保证存储器高访问带宽的基础上,使得多个线程的不公平性平均下降了56.64%。更多还原

【Abstract】 This paper discusses the fairness problem when multiple threads accessing the shared memory resource in the multi-core system,and investigates the influence of the fairness on the performance of multiple threads.Based on the proposed burst scheduling access reordering mechanism,this paper also implements a new memory scheduling algorithm that achieves good fairness.This algorithm reduces the fairness of different threads by 56.64%,while still keeping the bandwidth of memory access high.更多还原