实时操作系统要求具有速度快和可预测性的特点，必须保证实时任务在要求的时间内完成。本文在分析Linux 操作系统的中断方式和进程调度等影响实时性的因素后，对Linux的实时性策略进行改进，提出了双内核解决方案。关键词: Linux 实时性 调度 双内核Abstract:The real-time operating system request the speed to be quick and the characteristic may be forecast, the real-time duty must completed in the request time. This paper after analyzes the way of interrupt and the curse scheduled of the Linux operating system, makes the improvement of the real-time in Linux by the double kernel strategy.Keyword: Linux, real-time, schedule, double kernel