Descripción
|
|
---|---|
Future high-quality consumer electronics will contain a number of applications running in a highly dynamic environment, and their execution will need to be efficiently arbitrated by the underlying platform software. The multimedia applications that currently execute in such similar contexts face frequent run-time variations in their resource demands, originated by the greedy nature of the multimedia processing itself. Changes in resource demands are triggered by numerous reasons (e.g. a switchintheinputmediacompressionformat).Suchsituationsrequirereal-timeadaptationmechanisms toadjustthesystemoperationtothenewrequirements,andthismustbedoneseamlesslytosatisfythe userexperience.Onesolutionforefficientlymanagingapplicationexecutionistoapply qualityofservice resourcemanagementtechniques,basedonassigningandenforcingresourcecontractstoapplications. Mostresourcemanagementsolutionsprovidetemporalisolationbyenforcingresourceassignmentsand avoiding any resource overruns. However, this has a clear limitation over the cost-effective resource usage.Thispaperpresentsasimplepriorityassignmentschemebasedonuniformprioritybandstoallow that greedy multimedia tasks incur in safe overruns that increase resource usage and do not threaten the timely execution of non-overrunning tasks. Experimental results show that the proposed priority assignmentschemeincombinationwitharesourceaccountingmechanismpreservestimelymultimedia executionanddelivery,achievesahighercost-effectiveprocessorusage,andguaranteestheexecution isolationofnon-overrunningtasks. | |
Internacional
|
Si |
JCR del ISI
|
Si |
Título de la revista
|
FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF GRID COMPUTING AND ESCIENCE |
ISSN
|
0167-739X |
Factor de impacto JCR
|
2,365 |
Información de impacto
|
|
Volumen
|
28 |
DOI
|
10.1016/j.future.2011.10.005 |
Número de revista
|
9/97 COMPU |
Desde la página
|
902 |
Hasta la página
|
912 |
Mes
|
SIN MES |
Ranking
|
9/97 COMPUTER SCIENCE, THEORY & METHODS (SCI) |