On Periodic Resource Scheduling for Continuous Media Databases

The Enhanced Pay-Per-View (EPPV) model for providing continuous-media services associates with each continuous-media clip a display frequency that depends on the clip's popularity. The aim is to increase the number of clients that can be serviced concurrently beyond the capacity limitations of available resources, while guaranteeing a constraint on the response time. This is achieved by sharing periodic continuous-media streams among multiple clients. The EPPV model offers a number of advantages over other data-sharing schemes (e.g., batching), which make it more attractive to large-scale service providers. In this paper, we provide a comprehensive study of the resource-scheduling problems associated with supporting EPPV for continuousmedia clips with (possibly) different display rates, frequencies, and lengths. Our main objective is to maximize the amount of disk bandwidth that is effectively scheduled under the given data layout and storage constraints. Our formulation gives ris...

• Type: Conference
• Year: 1998
• Where: RIDE
• Authors: Minos N. Garofalakis, Banu Özden, Abraham Silberschatz
• Keywords: Continuous-media Services Associates, Document Analysis, Periodic Continuous-media Streams, Real-time Scheduling, RIDE 1998