IMPROVEMENTS RELATING TO TASK DISPATCH IN PRIORITY PRE-EMPTIVE REAL-TIME OPERATING SYSTEMS

摘要

A method, computing device, operating system and configuration tool for optimising or at least improving task dispatch in a priority pre-emptive real-time context are disclosed. Tasks making up an operating system are categorised into various classes in accordance with various task attributes, such as need to save floating point context, need to save digital signal processor context and the like. Each class contains only tasks having a unique combination of attributes. An individual subdispatcher function is then generated for each class, the subdispatcher function being adapted to handle tasks within that class with high efficiency. In this way, unnecessary saving and loading of contexts is reduced, and operating efficiency is improved.