5. Conclusion

The real-time executive is a dedicated operating system that provides a real-time application in charge of controlling a process with services enabling it to meet its main constraint: the time available for execution.

There are many real-time executables available today, which can be divided into two categories: so-called native executables, specifically designed for real-time, which are often proprietary or in-house, and executables derived from existing classic systems, often derived from the Unix system and complying with the POSIX standard (1003.1b and 1003.1c).

In this second category of executables, we're interested in the RTLinux system, derived from the classic Linux system. RTLinux was designed by adding real-time properties to the standard Linux operating system. It is a system in which a real-time kernel coexists with a non-real-time...