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ECRTS
1999
IEEE

Handling sporadic tasks in off-line scheduled distributed real-time systems

14 years 2 months ago
Handling sporadic tasks in off-line scheduled distributed real-time systems
Many industrial applications mandate the use of a timetriggered paradigm and consequently the use of off-line scheduling for reasons such as predictability, certification, cost, or product reuse. The construction of an off-line schedule requires complete knowledge about all temporal aspects of the application. The acquisition of this information may involve unacceptable cost or be impossible. Often, only partial information is available from the controlled environment. In this paper1 , we present an algorithm to handle eventtriggered sporadic tasks, i.e., with unknown arrival times, but known maximum arrival frequencies, in the context of distributed, off-line scheduled systems. Sporadic tasks are guaranteed during design time, allowing rescheduling or redesign in the failure case. At run-time, the sporadic tasks are scheduled dynamically, allowing the reuse of resources reserved for, but not consumed by the sporadic tasks. We provide an off-line schedulability test for sporadic tasks...
Damir Isovic, Gerhard Fohler
Added 03 Aug 2010
Updated 03 Aug 2010
Type Conference
Year 1999
Where ECRTS
Authors Damir Isovic, Gerhard Fohler
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