常用嵌入式实时操作系统比较分析

以与实时系统开发过程密切相关的实时性、故障容错和标准兼容性等关键特征为基础，提出一套对嵌入式实时操作系统性能衡量的标准，涵盖体系结构、硬件支持、调度管理、内存管理、进程间通讯、定时性能、网络支持、文件系统、驱动编程以及开发调试等关键特证。并利用该标准对常用嵌入式实时操作系统进行了详细地分析与对比，为系统研发过程中嵌入式实时操作系统的选择提供指南。

Comparison and analysis of major embedded real-time operating systems

With the foundation of real-time, fault tolerant, standard compatibility, a standard for embedded real-time OS was suggested, which included embedded OS architecture, supported hardware, schedule management, memory management, inter-process communication, timer performance, network support, file system, driver development and debug and so on. Mso a detailed analysis and comparison for major embedded real-time operating systems was given, and it can be a good guide to select the best embedded real-time OS for the application situation.