This paper deals with object-oriented real-time dependable systems required to achieve the best usage of the resources, even under adverse circumstances as transient overloads or component failures. Various possible trade-offs among the different application requirements must be considered to allow a flexible management of system resources. On the basis of a simple formulation of the concept of object value in real-time systems we propose a performability metric that represents a suitable measure of system accomplishment level. A planner component is defined which is responsible for implementing a value-driven admission policy that maximizes the performability index and hence achieves the optimal utilization of available system resources. The numerical evaluation of a system organisation taken as an example is performed for different load sets and various redundant execution techniques.

Value-Driven Resource Assignment in Object-Oriented Real-Time Dependable Systems / A. Bondavalli;F. D. Giandomenico;I. Mura. - STAMPA. - (1997), pp. 92-99. (Intervento presentato al convegno Third IEEE Int. Workshop on Object-oriented Real-time Dependable Systems (WORDS 97) tenutosi a Newport Beach, California, USA nel 1997-February 6-7) [10.1109/WORDS.1997.609930].

Value-Driven Resource Assignment in Object-Oriented Real-Time Dependable Systems

BONDAVALLI, ANDREA;
1997

Abstract

This paper deals with object-oriented real-time dependable systems required to achieve the best usage of the resources, even under adverse circumstances as transient overloads or component failures. Various possible trade-offs among the different application requirements must be considered to allow a flexible management of system resources. On the basis of a simple formulation of the concept of object value in real-time systems we propose a performability metric that represents a suitable measure of system accomplishment level. A planner component is defined which is responsible for implementing a value-driven admission policy that maximizes the performability index and hence achieves the optimal utilization of available system resources. The numerical evaluation of a system organisation taken as an example is performed for different load sets and various redundant execution techniques.
1997
Third IEEE Int. Workshop on Object-oriented Real-time Dependable Systems (WORDS 97)
Third IEEE Int. Workshop on Object-oriented Real-time Dependable Systems (WORDS 97)
Newport Beach, California, USA
1997-February 6-7
A. Bondavalli;F. D. Giandomenico;I. Mura
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/601214
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