多路径传输协议缓存研究分析  

Multi-path TCP Cache Size

作　　者：周峰[1] 周星[1] 王琨[1] 廖宇力[1] 符发[1] Zhou Feng Zhou Xing Wang Kun Liao Yuli Fu Fa(College of Information Science and Technology, Hainan University, Haikou 570228, Chin)

机构地区：[1]海南大学信息科学技术学院,海南海口570228

出　　处：《海南大学学报（自然科学版）》2017年第2期111-118,共8页Natural Science Journal of Hainan University

基　　金：国家自然科学基金(61363008;61662020)

摘　　要：首先介绍了MPTCP协议的技术原理,其次对TCP协议和MPTCP协议的缓存大小和吞吐量的关系进行研究分析,根据研究结果提出了一个针对低延时、高带宽场景的缓存数学计算模型,用于计算MPTCP缓存大小,最后设计了一组本地实验和NorNet Core测试床实验进行分析.实验结果表明,根据模型所设计的缓存取值仅为当前Linux内核缓存默认值的一半,大大减少了资源浪费的同时传输也达到了吞吐量的最大值.In our report, the technical principle of MPTCP protocol is introduced. The relationship between cache size and throughput of TCP protocol and MPTCP protocol was also analyzed. Based on the research results, a cache calculation model for low latency and high bandwidth scene was established to calculate MPTCP cache size. Lastly, the local experiments and NorNet Core test bed experiment was designed and performed. The results showed that the cache value designed according to the model was only one half of the current Linux kernel cache, which greatly reduced the waste of resources and reached maximum of throughput.

关 键 词：多路径传输协议 缓存分析 缓存模型 

分 类 号：TP305[自动化与计算机技术—计算机系统结构]