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Why You Can't Analyze RTOSs without Considering Applications and Vice Versa
| Content Provider | Semantic Scholar |
|---|---|
| Author | Schneider, Jörn |
| Copyright Year | 2002 |
| Abstract | Traditionally worst case execution time (WCET) analysis tools are designed for the analysis of application code. The execution time of Real-Time Operating System (RTOS) services and the interaction between RTOS and application are usually not considered. When performing an RTOS aware schedulability analysis the WCETs of RTOS services are needed. At first sight the application of existing WCET analyzers on RTOS code should be straightforward and should deliver the same accuracy as for application code. The paper explains why this is not the case, and why the presence of an RTOS diminishes the accuracy of application code WCET analysis. In addition to explaining why RTOSs should not be analyzed without considering application code and vice versa, the underlying problems are identified as well as enlightened by some examples and possible solutions are sketched. Eventually a comprehensive approach for WCET and schedulability analysis is proposed. The comprehensiv approach solves almost all of the identified problems. Additionally, the synergetic approach opens the road towards very promising, novel possibilities, like automatic troub le spot identification. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.cs.york.ac.uk/rts/wcet2002/papers/schneider.pdf |
| Alternate Webpage(s) | http://rw4.cs.uni-sb.de/~js/PUBLICATIONS/em_wcet.ps.gz |
| Alternate Webpage(s) | https://www.cs.york.ac.uk/rts/wcet2002/papers/schneider.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
