Summary: Proceedings of the IEEE Conference on Real­Time Computing Systems and Applications, Hong Kong, December 1999 1
Adaptive Bandwidth Reservation for Multimedia Computing
Luca Abeni
RETIS Lab
Scuola Superiore S. Anna, Pisa
luca@hartik.sssup.it
Giorgio Buttazzo
University of Pavia (Italy)
INFM ­ Pavia research unit
giorgio@sssup.it
Abstract
In this paper we present a framework for dynamically al­
locating the CPU resource to tasks whose execution times
are not known a priori. Tasks are partitioned in three
classes: the ones that require a uniform execution but do not
impose any temporal constraint, periodic tasks that operate
on Continuous Media, and event driven tasks that respond
to external interrupts. For the last two classes, we show
how to adjust the fraction of the CPU bandwidth assigned
to each task using a feedback mechanism.

Source: Abeni, Luca - Dipartimento di Ingegneria e Scienza dell'Informazione, Università di Trento

Collections: Computer Technologies and Information Sciences