摘要
为了改善嵌入式Linux在实时应用中的不足,从软中断模拟技术、可抢占式内核机制等方面给出了改善系统实时性能的方法,中断软件模拟被用来解决多个中断同时发生的情形,双核结构使Linux内核成为完全可被抢占实时内核,使用实时核来运行实时任务,Linux内核来运行非实时任务,提高了嵌入式Linux内核的实时性,并且拓展了实时系统的应用范围。
Based on the analysis of the limitation of Embedded Linux in Real-time system, the methods to improve the Real-time capabilities are proposed. They are soft interrupt control technology and the kernel priviledge mechanism, the soft interrupt control technology are used to solve the problem that several interrupt occur simultaneously, double-nucle- us structure makes lintrx nucleus to be real-nucleus that can be completely occupied, we usually use real-nucleus to run real task and use linux nucleus to run non real task. Then the Real-time capability of linux kernel are improved and the applications of Real-time system are exnanded.
出处
《微电子学与计算机》
CSCD
北大核心
2007年第6期100-103,共4页
Microelectronics & Computer
