Task jitter measurement under RTLinux and RTX operating systems, comparison of RTLinux and RTX operating environments

This paper compares task jitter measurement performed under RTLinux and RTX hard real-time operating systems. Both the operating environments represent Hardware Abstraction Layer extensions to general-purpose operating systems, and make possible to create a real-time system according to the POSIX 1003.13 PSE 54 profile (multipurpose system). The paper is focused on discussion of experimental results, obtained on PC hardware, and their interpretation.