Abstract
System-level software modelling and simulation have become important techniques for real-time embedded system early design space exploration. However, the timing accuracy issues have not been solved well in current methods, which produce unrealistic results or large simulation overheads. In this paper, we propose a mixed timing modelling and simulation approach to decouple conventionally interdependent software timing modelling and simulation into two separate phases. This approach enables (1) mixed software timing information granularities and annotation methods at the modelling stage for performance and accuracy trade-off (2) good software preemption and hardware interrupt handling timing accuracy at the simulation stage without sacrificing simulation performance (3) varying system run-time status observability and simulation speed for efficiency trade-off. Experiments demonstrate that our approach has flexible simulation performance trade-offs and good simulation timing accuracy. The measured results indicate that hardware interruption and software preemption problems are also solved by our approach.
| Original language | English |
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| Title of host publication | 2009 INTERNATIONAL CONFERENCE ON EMBEDDED SOFTWARE AND SYSTEMS, PROCEEDINGS |
| Place of Publication | LOS ALAMITOS |
| Publisher | IEEE Computer Society |
| Pages | 193-200 |
| Number of pages | 8 |
| ISBN (Print) | 978-0-7695-3678-1 |
| Publication status | Published - 2009 |
| Event | 6th International Conference on Embedded Software and Systems - Hangzhou Duration: 25 May 2009 → 27 May 2009 |
Conference
| Conference | 6th International Conference on Embedded Software and Systems |
|---|---|
| City | Hangzhou |
| Period | 25/05/09 → 27/05/09 |