DESIGN OF EXPERIMENTAL PLATFORM FOR TESTING REAL-TIME DATABASE TRANSACTION PROCESSING

It is very difficult to achieve guaranteed real time database services when putting a database into a real-time environment because various components can compete for system resources. Previous research in real-time databases has focused primarily on evolution of transaction processing algorithms, priority assignment strategies and concurrency control techniques. But for the most part the research efforts are based only on simulation studies with many parameters defined. Our objective is to design and implement an experimental real-time database system suitable for study of real time transaction processing. The experimental system is implemented as an integrated set of the most important functional parts upon the real-time operating system VxWorks. It serves as a support platform for performance evaluation of known and new algorithms of the particular processing components to understand their effect on system performance and to identify the most influencing factors.