摘要
数据包高效快速递交对于TCP实现的性能极为关键。当前TCP实现通常采用线性链表组织TCP层服务访问点(SAP),当TCP连接过多时,TCP的性能将急剧下降。同时,R树具有极其良好的查找性能。为此,提出了基于等密度三维R树的SAP定位模型,该模型将SAP的关键字构造为三维空间中的点对象,并为点对象建立等密度三维R树,借助于R树的良好查找性能实现SAP的快速定位提高TCP性能。
Data packet is effectively and rapidly delivered,which is very vital to TCP implementation performance. By far, TCP implementation usually uses linear- link - table to organize service access point(SAP) of TCP layer. While the connections are too many, the TCP performance will drop rapidly. On the other hand, R - tree has good search performance. So, this paper proposes SAP positioning model based on equal density three- dimensional R- tree(SPMEDTR). The SPMEDTR makes key- words of SAP into point- object in three- dimensional space, and indexes the point - objects becoming equal density three - dimensional R- tree, and gets TCP performance enhancement by good search performance of R - tree to gain rapid positioning of SAP.
出处
《信息技术》
2007年第9期76-80,共5页
Information Technology
关键词
TCP性能
R树
数据包
SAP定位
TCP performance
R - tree
data packet
SAP positioning