Abstract
The run-time support mechanism usually deployed for monitoring the timing requirements of real-time systems is based on deadline monitoring, i.e., the system calls specific application code whenever a deadline is violated. However, from a fault-tolerance point-of-view, deadline miss is the final error in a chain of errors that results from some fault in the execution of one or more threads. Recognising this, major real-time programming standards, like Ada, POSIX and the RTSJ, have proposed different mechanisms for monitoring the execution time of threads. Nevertheless, in order to provide a complete,fault-tolerance approach against timing errors, the potential blocking time of threads also has to be monitored. In this paper we propose a mechanism for monitoring the blocking time of threads in the context of both basic priority inheritance and priority ceiling protocols. We also implement and evaluate the mechanism with the definition of blocking-time clocks and timers (extending the POSIX standard), via the modification of the open-source operating system MaRTE OS.
| Original language | English |
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| Title of host publication | RTCSA 2008: 14TH IEEE INTERNATIONAL CONFERENCE ON EMBEDDED AND REAL-TIME COMPUTING SYSTEMS AND APPLICATIONS - PROCEEDINGS |
| Place of Publication | LOS ALAMITOS |
| Publisher | IEEE Computer Society |
| Pages | 347-356 |
| Number of pages | 10 |
| ISBN (Print) | 978-0-7695-3349-0 |
| Publication status | Published - 2008 |
| Event | 14th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications - Kaohsiung Duration: 25 Aug 2008 → 27 Aug 2008 |
Conference
| Conference | 14th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications |
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| City | Kaohsiung |
| Period | 25/08/08 → 27/08/08 |