Context-sensitive Parametric WCET Analysis
Document type :
Communication dans un congrès avec actes
Title :
Context-sensitive Parametric WCET Analysis
Author(s) :
Ballabriga, Clement [Auteur]
Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL]
Forget, Julien [Auteur]
Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL]
Lipari, Giuseppe [Auteur]
Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL]

Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL]
Forget, Julien [Auteur]

Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL]
Lipari, Giuseppe [Auteur]

Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL]
Conference title :
15th International Workshop on Worst-Case Execution Time Analysis
City :
Lund
Country :
Suède
Start date of the conference :
2015-12-07
Book title :
15th International Workshop on Worst-Case Execution Time Analysis
Publication date :
2015-07-07
English keyword(s) :
WCET analysis
WCET estimation
WCET estimation
HAL domain(s) :
Informatique [cs]/Systèmes embarqués
Informatique [cs]/Système d'exploitation [cs.OS]
Informatique [cs]/Système d'exploitation [cs.OS]
English abstract : [en]
In this paper, we propose a WCET analysis that focuses on two aspects. First, it supports context-sensitive hardware and software timing effects, meaning that it is sensitive to the execution history of the program and ...
Show more >In this paper, we propose a WCET analysis that focuses on two aspects. First, it supports context-sensitive hardware and software timing effects, meaning that it is sensitive to the execution history of the program and thus can account for effects like cache persistence, triangular loop, etc. Second, it supports the introduction of parameters in both the software model (e.g. parametric loop bounds) and the hardware model (e.g. number of cache misses). WCET computation by static analysis is traditionally handled by the Implicit Path Enumeration Technique (IPET), using an Integer Linear Program (ILP) that is difficult to resolve parametrically. We suggest an alternative tree-based approach. We define a context-sensitive CFG format to express these effects, and we provide an efficient method to process it, giving a parametric WCET formula. Experimental results show that this new method is significantly faster and more accurate than existing parametric approaches. 1998 ACM Subject Classification C.3 Real-time and embedded systemsShow less >
Show more >In this paper, we propose a WCET analysis that focuses on two aspects. First, it supports context-sensitive hardware and software timing effects, meaning that it is sensitive to the execution history of the program and thus can account for effects like cache persistence, triangular loop, etc. Second, it supports the introduction of parameters in both the software model (e.g. parametric loop bounds) and the hardware model (e.g. number of cache misses). WCET computation by static analysis is traditionally handled by the Implicit Path Enumeration Technique (IPET), using an Integer Linear Program (ILP) that is difficult to resolve parametrically. We suggest an alternative tree-based approach. We define a context-sensitive CFG format to express these effects, and we provide an efficient method to process it, giving a parametric WCET formula. Experimental results show that this new method is significantly faster and more accurate than existing parametric approaches. 1998 ACM Subject Classification C.3 Real-time and embedded systemsShow less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
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