Microsoft Word - 19 关键词： 嵌入式 Linux；实时性；抢占式内核 [gap=543]Keywords： Embedded Linux； real-time； Preemptive Kernel
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UC/OS-II is a preemptive kernel embedded operation system whose source code is opened. It includes only basic functions, such as tasks scheduling, tasks management, time management, memory management and the communication and synchronization between tasks.
uCOS-II是一个源代码公开的抢占式内核实时嵌入式操作系统,只包含了任务调度、任务管理、时间管理、内存管理和任务间的通信与同步等基本功能。
参考来源 - 实时操作系统任务调度算法的改进及网络协议栈的实现·2,447,543篇论文数据，部分数据来源于NoteExpress
这些更改提供了完全抢占式内核、线程中断处理程序、高分辨率计时器、优先级继承和健壮的互斥锁（mutex）。
These changes provide a fully preemptible kernel, threaded interrupt handlers, high-resolution timers, priority inheritance, and robust mutexes.
相比2.4内核，2.6采用了一些新技术使得实时性有了很大提高，如可抢占式内核、新的O(1)调度算法等。
Compared with 2.4 version kernel, 2.6 has been improved in real-time performance by adopting some new technologies, such as preemptible kernel, new o (1) schedule algorithm etc.
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