When quoting this document, please refer to the following
DOI: 10.4230/OASIcs.WCET.2012.1
URN: urn:nbn:de:0030-drops-35521
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Cassez, Franck ; Hansen, René Rydhof ; Olesen, Mads Chr.

What is a Timing Anomaly?

p001-cassez.pdf (0.5 MB)


Timing anomalies make worst-case execution time analysis much harder, because the analysis will have to consider all local choices. It has been widely recognised that certain hardware features are timing anomalous, while others are not. However, defining formally what a timing anomaly is, has been difficult. We examine previous definitions of timing anomalies, and identify examples where they do not align with common observations. We then provide a definition for consistently slower hardware traces that can be used to define timing anomalies and aligns with common observations.

BibTeX - Entry

  author =	{Franck Cassez and Ren{\'e} Rydhof Hansen and Mads Chr. Olesen},
  title =	{{What is a Timing Anomaly?}},
  booktitle =	{12th International Workshop on Worst-Case Execution Time Analysis},
  pages =	{1--12},
  series =	{OpenAccess Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-41-5},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{23},
  editor =	{Tullio Vardanega},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{},
  URN =		{urn:nbn:de:0030-drops-35521},
  doi =		{},
  annote =	{Keywords: Timing anomalies, worst case execution time (WCET), abstractions}

Keywords: Timing anomalies, worst case execution time (WCET), abstractions
Seminar: 12th International Workshop on Worst-Case Execution Time Analysis
Issue Date: 2012
Date of publication: 28.06.2012

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