The paper presents an architectural framework and algorithms for engineering dynamic real-time distributed systems using commercial off-the-shelf technologies. In the proposed architecture, a real-time system application is developed in a general-purpose programming language. Further, the architectural-level description of the system such as composition and interconnections of application software and hardware, and the operational requirements of the system such as timeliness and survivability are specified in a system description language. The specification of the system is automatically translated into an intermediate representation (IR) that models the system in a platform-independent manner. The IR is augmented with dynamic measurements of the system by a language runtime system to produce a dynamic system model. The dynamic model is used by resource management middleware strategies to perform resource management that achieves timeliness and survivability requirements. We present two classes of algorithms: predictive and availability-based, for performing resource allocation. To validate the viability of the approach, we use a real-time benchmark application that functionally approximates dynamic real-time command and control systems. The benchmark results illustrate that the middleware is able to achieve the desired timeliness requirements during a number of load situations. Furthermore, availability-based allocation algorithms perform resource allocation less frequently, whereas predictive algorithms give a better steady state performance for the application.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Engineering dynamic real-time distributed systems: architecture, system description language, and middleware


    Beteiligte:
    Ravindran, B. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2002


    Format / Umfang :

    28 Seiten, 70 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch