Integrating a database with real-time computing systems

The authors present their experience in integrating a relational database manager with a real-time operating system kernel. Since a database system must operate in the context of available operating system services, an environment for database systems development must provide facilities to support operating system functions and integrate them with database systems for experimentation. The choice made is the ARTS real-time operating system kernel which provides a predictable and reliable distributed real-time computing environment. The ARTS testbed has been used to investigate many issues relating to the construction of real-time systems, including priority-based scheduling, various thread workload mediation policies, and memory resident data