A Comprehensive Approach in Performance Evaluation for Modern Real-Time Operating Systems

In real-time computing is essential the accurate characterization of the performance and determinism that a particular real-time operating systehardware combination can provide for real-time applications. This issue is not properly addressed by existing performance metrics, mainly due to the lack of completeness and generalization. In this paper we present a set of comprehensive, easy-to-implement and useful metrics covering three basic real-time operating system features: response to external events, intertask synchronization and resource sharing, and intertask data transferring. The evaluation of real-time operating systems using a set of fine-grained metrics is fundamental to guarantee that we can reach the required determinism in real-world applications.