Mitigating software-instrumentation cache effects in measurement-based timing analysis
Cita com:
hdl:2117/103890
Tipus de documentText en actes de congrés
Data publicació2016
EditorSchloss Dagstuhl - Leibniz-Zentrum für Informatik
Condicions d'accésAccés obert
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continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement 3.0 Espanya
ProjecteRYC-2013-14717 (MINECO-RYC-2013-14717)
COMPUTACION DE ALTAS PRESTACIONES VII (MINECO-TIN2015-65316-P)
COMPUTACION DE ALTAS PRESTACIONES VII (MINECO-TIN2015-65316-P)
Abstract
Measurement-based timing analysis (MBTA) is often used to determine the timing behaviour of software programs embedded in safety-aware real-time systems deployed in various industrial domains including automotive and railway. MBTA methods rely on some form of instrumenta-
tion, either at hardware or software level, of the target program or fragments thereof to collect execution-time measurement data. A known drawback of software-level instrumentation is that instrumentation itself does affect the timing and functional behaviour of a program, resulting in
the so-called probe effect: leaving the instrumentation code in the final executable can negatively affect average performance and could not be even admissible under stringent industrial qualification and certification standards; removing it before operation jeopardizes the results of timing
analysis as the WCET estimates on the instrumented version of the program cannot be valid any more due, for example, to the timing effects incurred by different cache alignments. In this paper, we present a novel approach to mitigate the impact of instrumentation code on cache behaviour by reducing the instrumentation overhead while at the same time preserving and consolidating the results of timing analysis.
CitacióDíaz, E., Abella, J., Mezzetti, E., Aguirre, I., Azkarate-Askasua, M., Vardanega, T., Cazorla, F. Mitigating software-instrumentation cache effects in measurement-based timing analysis. A: International Workshop on Worst-Case Execution Time Analysis. "16th International Workshop on Worst-Case Execution Time Analysis (WCET 2016)". Toulouse: Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016, p. 1:1-1:11.
ISBN978-3-95977-025-5
Versió de l'editorhttp://drops.dagstuhl.de/opus/frontdoor.php?source_opus=6894
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Mitigating Soft ... Cache Effects in MBTA.pdf | 688,5Kb | Visualitza/Obre |