Dennis Ting

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network and operating system support for digital audio and video | 1993

Kadangode K. Ramakrishnan; Lev Vaitzblit; Cary G. Gray; Uresh Vahalia; Dennis Ting; Percy Tzelnic; Steve Glaser; Wayne W. Duso

This paper describes the design and implementation of a continuous media file server intended for use in emerging video-on-demand applications. The main focus and contribution of the paper is in scheduling and admission-control algorithms for accessing the servers processor and storage resources. The scheduling algorithms support multiple classes of tasks with diverse performance requirements and allow for the co-existence of guaranteed real-time requests with sporadic, and unsolicited requests. The scheduler maintains performance guarantees for real-time streams in the presence of unpredictably varying non-real-time traffic while ensuring system stability even during overloads. A prototype video file server was implemented on an Intel 486 platform. Performance results show that a large number of streams can be supported, while maintaining efficient utilization of system resources.

Multimedia Systems | 1995

Kadangode K. Ramakrishnan; Lev Vaitzblit; Cary G. Gray; Uresh Vahalia; Dennis Ting; Percy Tzelnic; Steve Glaser; Wayne W. Duso

This paper describes the design and implementation of a continuous media file server intended for use in emerging video-on-demand applications. The main focus and contribution of the paper is in scheduling and admission-control algorithms for accessing the servers processor and storage resources. The scheduling algorithms support multiple classes of tasks with diverse performance requirements and allow for the co-existence of guaranteed real-time requests with sporadic, and unsolicited requests. The scheduler maintains performance guarantees for real-time streams in the presence of unpredictably varying non-real-time traffic while ensuring system stability even during overloads. A prototype video file server was implemented on an Intel 486 platform. Performance results show that a large number of streams can be supported, while maintaining efficient utilization of system resources.

Archive | 1997