文件名称:Comparing-the-real-time-scheduling-policies-of-th
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By Le Trung Thang,April 2012
By default, the Linux kernel build used in the many open source distributions is the normal/default kernel which doesn’t support real time scheduling. If an embedded developer wants to compare the scheduling policies of Linux to a real time operating system it is more useful to compare RTOS performance to a version of Linux that does have real-time features.
Fortunately, in addition to this default kernel, there is also available a Real-time kernel version that supports a real-time scheduling policy. In this article and in the code examples that are included, an effort is made to compare the real time operations of standard and real-time Linux with normal RTOS operation and evaluate the differences and similarities.
By default, the Linux kernel build used in the many open source distributions is the normal/default kernel which doesn’t support real time scheduling. If an embedded developer wants to compare the scheduling policies of Linux to a real time operating system it is more useful to compare RTOS performance to a version of Linux that does have real-time features.
Fortunately, in addition to this default kernel, there is also available a Real-time kernel version that supports a real-time scheduling policy. In this article and in the code examples that are included, an effort is made to compare the real time operations of standard and real-time Linux with normal RTOS operation and evaluate the differences and similarities.
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Thang Comparing the real-time scheduling policies of the Linux kernel and an RTOS 23p Apr2012.pdf