Abstract
Process models for multimedia computing must allow applications to adapt their pattern of execution as resources become scarce or abundant. As processes adapt, it is natural to express their desired performance in terms of a processing rate of application-defined data units or events. We propose a process model wherein processes execute according to a general rate specification of x process executions every y time units. In addition, a separate parameter is used to specify the desired response time for the completion of each execution. In all cases the real-time performance of a rate-based process is predictable. The model is general enough to encompass or extend many of the existing models proposed for multimedia systems. Our model of rate-based execution is described along with an implementation that detects when processes should adapt their execution rate and minimizes latency in interprocess communication.
This work supported by grants from the Intel and IBM corporations.
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Jeffay, K., Bennett, D. (1995). A rate-based execution abstraction for multimedia computing. In: Little, T.D.C., Gusella, R. (eds) Network and Operating Systems Support for Digital Audio and Video. NOSSDAV 1995. Lecture Notes in Computer Science, vol 1018. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0019252
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DOI: https://doi.org/10.1007/BFb0019252
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