Method and apparatus for monitoring—with contention mitigation—avionics application(s) running on a platform with multi-core processor, related electronic avionics system and computer program

An electronic device for monitoring avionics software applications executed by an avionics platform that is carried on-board an aircraft, the avionics platform including a multi-core processor and hosting an operating system, the monitoring device comprising:

• an acquisition module configured for acquiring, for each software application being executed, a value of at least one characteristic variable representative of a use of the platform, each acquired value of a characteristic variable being associated with the respective software application;
• a comparison module configured to compare, for each software application being executed, each acquired value with a respective threshold corresponding to the characteristic variable;
• and
• a stopping module configured to stop, for each software application being executed, execution of the respective software application if at least one acquired value is higher than the respective threshold, while one or more other software applications execute in parallel, and when the respective software application is stopped, the other software application(s) continue executing,
• wherein, for each characteristic variable, the respective threshold is determined as the value of the characteristic variable taken for a pre-defined reference contending application during execution of the reference contending application and a pre-defined reference sensitive application during a preliminary phase, the reference contending application causing an increase in the execution time of the reference sensitive application according to a predefined contention ratio, the contention ratio being equal to an execution time of the reference sensitive application when executed at the same time as the reference contending application divided by an execution time of the reference sensitive application when executed alone by the platform, the preliminary phase preceding the monitoring of each software application.