Hard real-time performances in multiprocessor-embedded systems using ASMP-Linux

Multiprocessor systems, especially those based on multicore or multithreaded processors, and new operating system architectures can satisfy the ever increasing computational requirements of embedded systems.ASMP-LINUX is a modified, high responsiveness, open-source hard real-time operating system for multiprocessorsystems capable of providing high real-time performance while maintaining the code simple and not impacting on theperformances of the rest of the system. Moreover, ASMP-LINUX does not require code changing or application recompiling/relinking.In order to assess the performances of ASMP-LINUX, benchmarks have been performed on several hardware platformsand configurations

Real-time capabilities in the standard Linux Kernel: How to enable and use them?

Linux was originally designed as a general purpose operating system without consideration for real-time applications. Recently, it has become more attractive to the real-time community due to its low cost and open source approach. In order to help the real-time community, we will present in this paper the practical steps required to achieve a real-time Linux by applying the PREEMPT-RT patches which will provide Linux with these capabilities. We will also focus on some of the kernel configuration that should get attention while building the kernel in order to maintain the real-time behavior of the system during runtime. DOI: 10.17762/ijritcc2321-8169.15012