Linuxs Real-time Capability Optimization in Application

摘要：

In order to improve the real-time performance of the Linux system, real-time capability improving methods provided by some company or organization was analyzed in this paper. A mechanism called Entering a critical section is allowed only if the operation finishes before the execution of next real-time task is introduced, together with the implementation of Priority Ceiling Protocol and using the kernel thread to replace the normal ISR. Thus the priorities of real-time tasks are ensured, the Priority Inversion situations are avoided and the interrupt latency is short and predictable. Though we focus only on embedded systems, the methods introduced here are also applicable to other real-time sensitive situations.

关键词： Linux real-time capability task switch priority ceiling protocol kernel thread

作者: YUAN Taiwen LI Xunbo LIANG Ding LV Qiang

作者单位: Department of Mechatronics, University of Electronic Science and Technology of China, Chengdu, 610054

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）