2 Search Results for "Eles, Petru"

Document
Front Matter
DOI: 10.4230/OASIcs.WCET.2009.2295
WCET 2009 -- Preface to 9th International Workshop on Worst-Case Execution Time Analysis

Authors: Niklas Holsti

Published in: OASIcs, Volume 10, 9th International Workshop on Worst-Case Execution Time Analysis (WCET'09) (2009)

Abstract
On June 30, 2009, thirty-five people from nine countries and three continents met in Trinity College, Dublin, to hold the 9th International Workshop on Worst-Case Execution Time Analysis (WCET'09, http://www.artist-embedded.org/artist/WCET-2009.html). The workshop was organised as a satellite event of the 21st Euromicro Conference on Real-Time Systems (ECRTS'09, http://ecrts09.dsg.cs.tcd.ie). The final proceedings here presented contain the workshop papers as updated in response to the discussion at the workshop, the abstract of the invited talk by prof. Petru Eles, and a summary of the panel discussion that concluded the workshop. The slide presentations can be retrieved from the workshop web-site referenced above.
Cite as

9th International Workshop on Worst-Case Execution Time Analysis (WCET'09). Open Access Series in Informatics (OASIcs), Volume 10, pp. i-iv, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

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@InProceedings{holsti:OASIcs.WCET.2009.2295,
  author =	{Holsti, Niklas},
  title =	{{WCET 2009 -- Preface to 9th International Workshop on Worst-Case Execution Time Analysis}},
  booktitle =	{9th International Workshop on Worst-Case Execution Time Analysis (WCET'09)},
  pages =	{i--iv},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-14-9},
  ISSN =	{2190-6807},
  year =	{2009},
  volume =	{10},
  editor =	{Holsti, Niklas},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.WCET.2009.2295},
  URN =		{urn:nbn:de:0030-drops-22958},
  doi =		{10.4230/OASIcs.WCET.2009.2295},
  annote =	{Keywords: Worst-case execution time, WCET analysis, real-time systems, scheduling}
}
Document
DOI: 10.4230/OASIcs.WCET.2009.2287
Predictable Implementation of Real-Time Applications on Multiprocessor Systems on Chip

Authors: Petru Eles

Published in: OASIcs, Volume 10, 9th International Workshop on Worst-Case Execution Time Analysis (WCET'09) (2009)

Abstract
Worst-case execution time (WCET) analysis and, in general, the predictability of real-time applications implemented on multiprocessor systems has been addressed only in very restrictive and particular contexts. One important aspect that makes the analysis difficult is the estimation of the system's communication behavior. The traffic on the bus does not solely originate from data transfers due to data dependencies between tasks, but is also affected by memory transfers as result of cache misses. As opposed to the analysis performed for a single processor system, where the cache miss penalty is constant, in a multiprocessor system each cache miss has a variable penalty, depending on the bus contention. This affects the tasks' WCET which, however, is needed in order to perform system scheduling. At the same time, the WCET depends on the system schedule due to the bus interference. In this context, we present an approach to worst-case execution time analysis and system scheduling for real-time applications implemented on multiprocessor SoC architectures. We will also address the bus scheduling policy and its optimization, which are of huge importance for the performance of such predictable multiprocessor applications.
Cite as

Petru Eles. Predictable Implementation of Real-Time Applications on Multiprocessor Systems on Chip. In 9th International Workshop on Worst-Case Execution Time Analysis (WCET'09). Open Access Series in Informatics (OASIcs), Volume 10, p. 1, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

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@InProceedings{eles:OASIcs.WCET.2009.2287,
  author =	{Eles, Petru},
  title =	{{Predictable Implementation of Real-Time Applications on Multiprocessor Systems on Chip}},
  booktitle =	{9th International Workshop on Worst-Case Execution Time Analysis (WCET'09)},
  pages =	{1--1},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-14-9},
  ISSN =	{2190-6807},
  year =	{2009},
  volume =	{10},
  editor =	{Holsti, Niklas},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.WCET.2009.2287},
  URN =		{urn:nbn:de:0030-drops-22875},
  doi =		{10.4230/OASIcs.WCET.2009.2287},
  annote =	{Keywords: WCET analysis, multiprocessor, SoC, system scheduling}
}
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