Flexible Scheduling in Multimedia Kernels

P.G. Jansen, Johan Scholten, Emiel Wygerink

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    Abstract

    Current Hard Real Time (HRT) kernels have their timely behaviour guaranteed on the cost of a rather restrictive use of the available resources. This makes current HRT scheduling techniques inadequate for use in a multimedia environment where we can make a considerable profit by a better and more flexible use of the resources. We will show that we can improve the flexibility and efficiency of multimedia kernels by combining Real Time Transactions with Deadline Inheritance policies under the Earliest Deadline First or the Deadline Monotonic rule. A currently running multimedia experiment shows a scheduling overhead of less than 0.5 percent. We also present the main ingredients for an open and adaptive Quality of Service (QoS) management. In particular a technique for rapid QoS schedulability analyses is offered. This technique can be applied to Hard Real Time analyses as well.
    Original languageEnglish
    Title of host publication3rd International Electronic Engineering Congress, INTERCON 1996
    Place of PublicationTrujillo, Peru
    PublisherUniversidad Privada Antenor Orrego
    Pages93-102
    Number of pages10
    Publication statusPublished - 1996
    Event3rd International Electronic Engineering Congress, INTERCON 1996 - Trujillo, Peru
    Duration: 12 Aug 199617 Aug 1996
    Conference number: 3

    Other

    Other3rd International Electronic Engineering Congress, INTERCON 1996
    Abbreviated titleINTERCON
    CountryPeru
    CityTrujillo
    Period12/08/9617/08/96

    Keywords

    • CAES-PS: Pervasive Systems
    • Real-time kernel
    • Transaction
    • Deadline inheritance
    • Multimedia
    • QoS
    • Schedulability

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  • Cite this

    Jansen, P. G., Scholten, J., & Wygerink, E. (1996). Flexible Scheduling in Multimedia Kernels. In 3rd International Electronic Engineering Congress, INTERCON 1996 (pp. 93-102). Trujillo, Peru: Universidad Privada Antenor Orrego.