Abstract
With the rapid development of real-time multimedia interactive applications, the traditional universal scheduling framework has limitation when using in the scheduling of multimedia tasks. Multimedia tasks are soft real-time tasks and requiring to be completed as many as possible. With the increasingly strict requirements of multimedia scheduling, the QoS of original scheduling model dissatisfy such requirements. This paper proposes a new multimedia system scheduling framework between hard real-time and soft real-time, which called the “virtual task supplementary scheduling framework” (VTC), a multimedia task processing for real-time systems. The new scheduling framework extends the traditional periodic task scheduling, and on this basis, it has timing determinism and scheduling predictability. The simulation results show that it can achieve more stable, no packet loss, non-disruptive real-time performance, and can meet the extremely strict requirements of professional multimedia.
This work was sponsored by Key Project of Hubei Provincial Department of Education under Granted No. D20181103.
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Hu, W., Zheng, H., Wang, Y., Guo, Y., Wu, J. (2020). VTC: A Scheduling Framework Between Soft Real-Time and Hard Real-Time on Multimedia OS. In: Qiu, M. (eds) Algorithms and Architectures for Parallel Processing. ICA3PP 2020. Lecture Notes in Computer Science(), vol 12452. Springer, Cham. https://doi.org/10.1007/978-3-030-60245-1_23
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