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The Impact of Intra-core and Inter-core Task Communication on Architectural Analysis of Multicore Embedded Systems


Note:

copyright IARIA

Publication Type:

Conference/Workshop Paper

Venue:

The Eighth International Conference on Software Engineering Advances

Publisher:

http://www.iaria.org/


Abstract

In order to get accurate performance predictions, design-time architectural analysis of multicore embedded systems has to consider communication overhead. When communicating tasks execute on the same core, the communication typically happens through the local cache. On the other hand, when they run on separate cores, the communication has to go through the shared memory. As the shared memory has a significantly larger latency than the local cache, we expect a significant difference between intra-core and inter-core task communication. In this paper, we present a series of experiments we ran to identify the size of this difference, and discuss its impact on architectural analysis of multicore embedded systems. In particular, we show that the impact of the difference is much lower than anticipated.

Bibtex

@inproceedings{Feljan3021,
author = {Juraj Feljan and Jan Carlson},
title = {The Impact of Intra-core and Inter-core Task Communication on Architectural Analysis of Multicore Embedded Systems},
isbn = {978-1-61208-304-9},
note = {copyright IARIA},
pages = {402--407},
month = {October},
year = {2013},
booktitle = {The Eighth International Conference on Software Engineering Advances},
publisher = {http://www.iaria.org/},
url = {http://www.es.mdu.se/publications/3021-}
}