The LibeRTOS project focuses on producing a stable, robust, and highly configurable Linux platform for industrial automation and other real-time applications. This paper provides an overview of LibeRTOS and discusses its most important capabilities which include: (1) high resolution time keeping, (2) extremely flexible and fine grain performance data collection support, (3) highly configurable scheduling… policies, and (4) integration of OS computational components, including interrupt handlers, into the system scheduling model. The combination of these capabilities provides a single-OS platform appropriate for a wide range of industrial automation and other real-time applications. This paper provides an overview of the most significant and innovative aspects of the LibeRTOS system implementation and discusses recent experimental results comparing its performance to RTAI, a popular dual-OS real-time system, for both kernel based and user space computations.

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