Title :
Dynamic QOS control based on the QOS-Ticket model
Author :
Kawachiya, Kiyokuni ; Tokuda, Hideyuki
Author_Institution :
Tokyo Res. Lab., IBM Res., Kanagawa, Japan
Abstract :
The most notable characteristic of continuous-media data is the existence of timing constraints. To handle such data appropriately some system support for resource management and QOS control is indispensable. For this reason, we are proposing a QOS-Ticker model, which combines resource reservation and adaptation. The QOS-Ticket model has been implemented on RT-Mach. In this prototype, a new thread mechanism named Q-Thread is provided. A Q-Thread allows a user to specify the tolerable range of the period and computation time for periodic invocations, and makes it easy to write a continuous-media session that can control the QOS dynamically. We show the effectiveness of the QOS-Ticket model based on a dynamic QOS-control experiment with our prototype
Keywords :
computational complexity; data handling; multimedia computing; operating systems (computers); quality control; real-time systems; resource allocation; Q-Thread; QOS-Ticket model; RT-Mach; computation time; continuous-media data; data handling; dynamic QOS control; multimedia; periodic invocations; prototype; real time operating system; resource management; resource reservation; thread mechanism; timing constraints; Control systems; Laboratories; Multimedia systems; Operating systems; Prototypes; Quality of service; Real time systems; Resource management; Timing; Yarn;
Conference_Titel :
Multimedia Computing and Systems, 1996., Proceedings of the Third IEEE International Conference on
Conference_Location :
Hiroshima
Print_ISBN :
0-8186-7438-5
DOI :
10.1109/MMCS.1996.534958
