摘 要:随着Linux 操作系统在嵌入式实时系统中的广泛应用,有效地提高Linux 有限的实时性能是一个重要问题,而
Linux 内核可抢占调度是实时性能的改进的关键。对Linux 内核调度器的工作原理进行了深入分析,并阐述了调度延迟是
其实时性不强的原因,然后介绍通过可抢占机制对Linux 内核进行改造,测试了改进后的内核的实时性。Abstract :With the wide application of Linux operation system in embedded real - time system fields , the enhancement of Linux real -
time performance becomes more and more important . Preemptive kernel is a decisive condition of a system’s real - time performance.
This paper analyzes of Linux scheduler and presents that the scheduler latency is the major cause of Linux OS’non - real - time. Then pre2
sent a solution to enhance the real - time performance of Linux. In the end , the simulation results are represented
