A framework to experiment optimizations for real-time and embedded software

Hugues Cassé (1, 2) , Karine Heydemann (3) , Haluk Ozaktas (3) , Jonathan Ponroy (4) , Christine Rochange (1) , Olivier Zendra (4)

1 IRIT-TRACES - Groupe de Recherche en Architecture et Compilation pour les systèmes embarqués
2 UT3 - Université Toulouse III - Paul Sabatier
3 ALSOC - Architecture et Logiciels pour Systèmes Embarqués sur Puce
4 TRIO - Real time and interoperability

Typical constraints on embedded systems include code size limits, upper bounds on energy consumption and hard or soft deadlines. To meet these requirements, it may be necessary to improve the software by applying various kinds of transformations like compiler optimizations, specific mapping of code and data in the available memories, code compression, etc. However, a transformation that aims at improving the software with respect to a given criterion might engender side effects on other criteria and these effects must be carefully analyzed. For this purpose, we have developed a common framework that makes it possible to experiment various code transfor-mations and to evaluate their impact of various criteria. This work has been carried out within the French ANR MORE project.

Mots clés: real-time; code size; energy consumption; optimization; WCET

Domaines: Systèmes embarqués; Modélisation et simulation; Performance et fiabilité [cs.PF]

Hugues Cassé, Karine Heydemann, Haluk Ozaktas, Jonathan Ponroy, Christine Rochange, et al.. A framework to experiment optimizations for real-time and embedded software. International Conference on Embedded Real Time Software and Systems (ERTS2), May 2010, Toulouse, France. ⟨inria-00539973⟩