Modular Performance Analysis of Embedded Real-Time Systems: Improving Modeling Scope and Accuracy
Neuware - A fundamental aspect of the design of an embedded system is the prediction of its performance in terms of timing, memory, or energy early in the design process. The objective of this task, typically referred to as system-level performance evaluation, is twofold. On one hand, it is instrumental for pre-validating a system design before any resources are invested for the actual implementation and, on the other hand, the performance evaluation is a central driver for the exploration of the design space. For systems with strict performance requirements such as hard real-time systems the performance evaluation needs to be provably correct, that is, it has to cover the worst-case performance scenarios. Furthermore, the evaluation should be fast such that it can be employed for the exploration of large design spaces. Recent research efforts have led to analytical and modular methods for worst-case performance evaluation at the system level. These methods ensure the correctness of the performance evaluation and are fast even for large-scale systems. However, they suffer from limited modelling scope and analysis accuracy. As a consequence, when applying these methods to complex systems, one often experiences considerable abstraction losses, which lead to overly pessimistic performance results. This thesis introduces several formal models and methods that re ne the modelling capabilities of analytical performance evaluation and prevent abstraction losses. The results build on the existing framework for Modular Performance Analysis (MPA), but apply also to other analytical formalisms. The main contributions of this thesis can be summarized as follows: . The modelling scope of analytical performance evaluation is extended to systems with cyclic dependencies. . New models and methods are introduced for handling structured event or data streams in analytical performance evaluation. . A novel hybrid analysis methodology is presented that combines analytical and state-based system evaluation. . New design methods for energy-efficient real-time systems are introduced. 238 pp. Englisch. Bookseller Inventory # 9783844002294
Title: Modular Performance Analysis of Embedded ...
Publisher: Shaker Verlag Jul 2011
Publication Date: 2011
Book Condition: Neu
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