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|Title:||Schedulability analysis of non-preemptive recurring real-time tasks|
|Source:||Baruah, S.K.,Chakraborty, S. (2006). Schedulability analysis of non-preemptive recurring real-time tasks. 20th International Parallel and Distributed Processing Symposium, IPDPS 2006 2006. ScholarBank@NUS Repository. https://doi.org/10.1109/IPDPS.2006.1639406|
|Abstract:||The recurring real-time task model was recently proposed as a model for real-time processes that contain code with conditional branches. In this paper, we present a necessary and sufficient condition for uniprocessor non-preemptive schedulability analysis for this task model. We also derive a polynomial-time approximation algorithm for testing this condition. Preemptive schedulers usually have a larger schedulability region compared to their non-preemptive counterparts. Further, for most realistic task models, schedulability analysis for the non-preemptive version is computationally more complex compared to the corresponding preemptive version. Our results in this paper show that (surprisingly) the recurring real-time task model does not fall in line with these intuitive expectations, i.e. there exists polynomial-time approximation algorithms for both preemptive and non-preemptive versions of schedulability analysis. This has important implications on the applicability of this model, since fully preemptive scheduling algorithms often have significantly larger runtime over-heads. © 2006 IEEE.|
|Source Title:||20th International Parallel and Distributed Processing Symposium, IPDPS 2006|
|Appears in Collections:||Staff Publications|
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