机构地区: 广东工业大学计算机学院
出 处: 《中国科技信息》 2008年第2期108-109,113,共3页
摘 要: 在有大量的外部事件的计算机系统中,实时操作系统必须在有限的时间内接收和处理。这样的要求不是只有多道程序设计能满足的,还有实时操作系统一般是依靠一些特别的策略和技术来完成这些任务。Linux操作系统利用静态的可抢占的优先调度到大部分没有实时的多道程序设计系统中。作为一个在实时系统中的修改,优等权的分配是和每个任务的时间约束联系在一起的。本文阐述了Linux实时调度的几种机制。 Real time operating system are used in environments where a large number of-events, mostly external te the computer system, must be accepted and processed in short time with ira certain deadline. Such requirements usually cannot be met only by meltiprogramming alone, and real time .operating system usually relies on some spedfic policies and techniques for doing their jobs. Linux implernents static prioritydriven preemptive scheduling common to most non real-time meltiprograrnming system. As a modification in the real time systems, priority assignment is associated with the time constraint associated with each task. This article gwes several scheduling of real--time Linux.
领 域: [自动化与计算机技术] [自动化与计算机技术]