SDL定时器性能分析及改进方法  

Analysis and Improvement of Performance of SDL Timer

作　　者：邹仕祥[1] 张曙光[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《军事通信技术》2015年第3期73-76,共4页Journal of Military Communications Technology

摘　　要：定时器是保证通信协议正常运行的基本要素之一,SDL提供了一整套定时器实现方法。测试表明,系统容量大时,SDL提供的定时器方法效率较低。文章深入研究了SDL定时器实现方法,分析了其性能,提出了基于多链表的定时器实现方法,通过修改库文件,无需更改应用层代码,即可将此方法应用于SDL系统,提高SDL系统运行效率。The timer is one of the basic elements of the normal operation of the communication protocol,and thus SDL provides a method for realizing timers.But tests show that,in a large capacity system,the efficiency of SDL timer is very low.In this paper,an in-depth study of the SDL timer implementation method and analyses of its performance were presented,and then a better method of the timer based on multi-linked list put forward.By modifying lib files,without changing the application layer code,this method can be applied to SDL system,and improve the efficiency of the SDL system.

关 键 词：定时器 规范描述语言框图 多链表 

分 类 号：TN929[电子电信—通信与信息系统]