基于Linux的进程调度研究  

Study of Process Scheduling Based on Linux Kernel

作　　者：李鹏[1] 满春涛[1] 

机构地区：[1]哈尔滨理工大学自动化学院,黑龙江哈尔滨150080

出　　处：《哈尔滨理工大学学报》2005年第6期66-69,共4页Journal of Harbin University of Science and Technology

基　　金：黑龙江省自然科学基金资助项目(F0202);黑龙江省教育厅科学技术项目(10543009)

摘　　要：针对进程调度中出现的优先级反向问题,对Linux内核源代码进行了分析,深入剖析了进程调度函数、基于信号量的互斥锁结构,在对互斥锁修改的基础上实现了优先级继承协议.经实验证明,互斥锁的优先级继承协议,降低了进程调度的时间延迟,提高了系统的实时性.Aiming at the priority inversion of the process scheduling, through the analysis of Linux kernel function this paper mainly studies the process scheduling function, mutex based on semaphore, it makes priority inheritance protocol into being on the base of modified the mutex. The priority inheritance protocol of the mutex reduces scheduling postone and enhances the real - time performance of the system.

关 键 词：进程调度 优先级反向 互斥锁 优先级继承协议 

分 类 号：TP316.81[自动化与计算机技术—计算机软件与理论]