Paper Info
Title
Dynamic Priority Assignment Scheme for Contract-Based Resource Management
Abstract
Multimedia execution in high-quality consumer electronics must handle frequent changes in the resource demands of the running applications. These changes can be due to, for instance, a switch in the nature of the incoming media or a user trigger to change the visual focus to a different application. These situations require real-time adaptation mechanisms to adjust the system operation to the new requirements seamlessly. Contract-based resource management allows dealing with these transitions guaranteeing that greedy multimedia applications do not suffer execution interference. A contract model has to be based on efficient resource budget assignment and enforcement to application tasks; this ensures transitioning to the new situation in a stable and safe way but at the cost of having a rigid resource allocation and enforcement to tasks. This paper presents a simple priority reassignment scheme based on uniform priority bands to allow that overrunning tasks execute if they do not threaten timely execution of non-overrunning tasks. It is described how this scheme is integrated with an effective resource accounting and monitoring mechanism; this integration serves as the basic mechanism to support dynamic adaptation in multimedia embedded systems. As proof of concept, this approach has been implemented in a QoS Resource Manager that follows the HOLA-QoS architecture. The experimental results show how multimedia application execution using the simple priority reassignment scheme on top of a resource accounting mechanism preserves timely multimedia delivery.
Year
DOI
Venue
2010
10.1109/CIT.2010.336
CIT
Keywords
Field
DocType
greedy multimedia application,multimedia embedded system,rigid resource allocation,resource accounting mechanism,dynamic priority assignment scheme,contract-based resource management,resource demand,effective resource accounting,simple priority reassignment scheme,efficient resource budget assignment,multimedia application execution,resource manager,dynamic scheduling,resource allocation,embedded system,real time,proof of concept,real time systems
Resource management,Architecture,Computer science,Computer network,Quality of service,Real-time computing,Proof of concept,Resource allocation,Enforcement,Priority inheritance,Dynamic priority scheduling,Distributed computing
Conference
Citations 
PageRank 
References 
2
0.36
0
Authors
3
Name
Order
Citations
PageRank
Marisol Garcia-Valls1887.10
Iria Estevez-Ayres2946.89
Pablo Basanta-Val335324.83