优先级继承运用于Linux内核信号量的研究与实现  

Research and Realization of Priority Inheritance Applied in Linux Kernel Semaphore

作　　者：王亚军[1] 

机构地区：[1]中国人民武装警察部队学院,河北廊坊065000

出　　处：《计算机系统应用》2010年第11期203-207,82,共6页Computer Systems & Applications

摘　　要：运用优先级继承协议解决Linux内核信号量操作中存在的优先级倒转问题,是将Linux运用于实时系统的重要手段。在具体分析Linux内核信号量操作源代码的基础上,针对优先级倒转问题修改内核实现基本优先级继承协议,并在PCM-3350嵌入式计算机系统上测试通过。It is very important to solve the problem of priority inversion by means of priority inheritance when applying Linux in real-time embedded system.Based on the analysis of the Linux source codes about kernel semaphore operation,this paper realizes the base priority inheritance protocol by modifying the Linux kernel,and passes the test on the embedded system of PCM-3350.

关 键 词：优先级倒转 优先级继承 信号量 实时性 嵌入式系统 

分 类 号：TP316.81[自动化与计算机技术—计算机软件与理论]