Kernel Support in a Distributed Multimedia Environment

P.G. Jansen, P.G.A. Sijben, Paul Sijben

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    Abstract

    We refer to a multimedia environment, consisting of workstations and servers connected by a network dealing with video and audio streams. These streams require Real-Time (RT) handling. Fortunately the requirements are not so demanding as those in Hard Real Time (HRT) systems. Therefore resources are easier to obtain and less restrictive in use. This implies a more relaxed behaviour of workstation kernels with respect to timeliness and opens the possibility of having a better average use of resources. Such a kernel may (1) respond in an opportunistic way by serving the most demanding process immediately and not caring about the others or it may (2) make flexible Quality of Service (QoS) contracts with applications. In case of emergency it should be possible to break a contract. Both types of kernels are considered and (dis)advantages are compared.
    Original languageUndefined
    Title of host publicationFirst International Workshop on Real-Time Computing Systems and Applications
    Place of PublicationSeoul Korea, Seoul National University
    Pages117-121
    Publication statusPublished - 14 Dec 1994

    Keywords

    • ATM networks
    • Continuous media
    • Resource Management
    • IR-18858
    • periodic processes
    • METIS-119380
    • Scheduling

    Cite this

    Jansen, P. G., Sijben, P. G. A., & Sijben, P. (1994). Kernel Support in a Distributed Multimedia Environment. In First International Workshop on Real-Time Computing Systems and Applications (pp. 117-121). Seoul Korea, Seoul National University.