Publicação
An analysis of the impact of bus contention on the WCET in multicores
| dc.contributor.author | Dasari, Dakshina | |
| dc.contributor.author | Nélis, Vincent | |
| dc.date.accessioned | 2014-02-06T11:33:48Z | |
| dc.date.available | 2014-02-06T11:33:48Z | |
| dc.date.issued | 2012 | |
| dc.description.abstract | The use of multicores is becoming widespread inthe field of embedded systems, many of which have real-time requirements. Hence, ensuring that real-time applications meet their timing constraints is a pre-requisite before deploying them on these systems. This necessitates the consideration of the impact of the contention due to shared lowlevel hardware resources like the front-side bus (FSB) on the Worst-CaseExecution Time (WCET) of the tasks. Towards this aim, this paper proposes a method to determine an upper bound on the number of bus requests that tasks executing on a core can generate in a given time interval. We show that our method yields tighter upper bounds in comparison with the state of-the-art. We then apply our method to compute the extra contention delay incurred by tasks, when they are co-scheduled on different cores and access the shared main memory, using a shared bus, access to which is granted using a round-robin arbitration (RR) protocol. | por |
| dc.identifier.doi | 10.1109/HPCC.2012.212 | pt_PT |
| dc.identifier.isbn | 978-1-4673-2164-8 | |
| dc.identifier.uri | http://hdl.handle.net/10400.22/3710 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | IEEE | por |
| dc.relation.ispartofseries | High Performance Computing and Communication; | |
| dc.relation.publisherversion | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6332348 | por |
| dc.title | An analysis of the impact of bus contention on the WCET in multicores | por |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Liverpool | por |
| oaire.citation.endPage | 1457 | por |
| oaire.citation.startPage | 1450 | por |
| oaire.citation.title | 14th IEEE International Conference on High Performance Computing and Communications (HPCC-2012); 9th IEEE International Conference on Embedded Software and Systems (ICESS-2012) | por |
| rcaap.rights | openAccess | por |
| rcaap.type | conferenceObject | por |