Improving commercial RTOS performance using a custom interrupt management scheduling policy

Authors:
Eugen Dodiu;Vasile Gheorghita Gaitan;Adrian Graur
Affiliations:
Stefan cel Mare University, Romania;Stefan cel Mare University, Romania;Stefan cel Mare University, Romania
Venue:
ACC'10 Proceedings of the 2010 international conference on Applied computing conference
Year:
2010

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Abstract

Hard real time systems should be built using a predictive approach since high importance tasks or human health is involved. The system must provide a real-time response to the changes of the environmental conditions and actions produced by humans or other hardware equipment. It is mandatory that task computations are both correct and finished within a specified deadline. This is often not possible with commercial RTOS because the high importance tasks can be interrupted by interrupts belonging to low priority tasks, thus delaying the task deadline. The paper presents a custom interrupt management policy that is meant to eliminate this inconvenience.