QoS and resource management in distributed interactive multimedia environments

Nahrstedt, Klara; Arefin, Ahsan; Rivas, Raoul; Agarwal, Pooja; Huang, Zixia; Wu, Weifeng; Yang, Zhenyu

doi:10.1007/s11042-010-0627-7

Cited by 23 publications

(19 citation statements)

References 50 publications

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“…Similarly, Nahrstedt et al worked on QualMan [34], a distributed real-time resource allocation architecture supporting network, disk and memory allocation, with prototype implementation on the Solaris OS. However, in both cases the degree of modularity of the architecture is limited, and they would greatly benefit from a CORBA-oriented design.…”

Section: Real-time Network Schedulingmentioning

confidence: 99%

Modular software architecture for flexible reservation mechanisms on heterogeneous resources

Sójka

Píša

Faggioli

et al. 2011

Journal of Systems Architecture

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Management, allocation and scheduling of heterogeneous resources for complex distributed real-time applications is a challenging problem. Timing constraints of applications may be fulfilled by a proper use of real-time scheduling policies, admission control and enforcement of timing constraints. However, it is not easy to design basic infrastructure services that allow for an easy access to the allocation of multiple heterogeneous resources in a distributed environment.In this paper, we present a middleware for providing distributed soft real-time applications with a uniform API for reserving heterogeneous resources with real-time scheduling capabilities in a distributed environment. The architecture relies on standard POSIX OS facilities, such as time management and standard TCP/IP networking services, and it is designed around CORBA, in order to facilitate modularity, flexibility and portability of the applications using it. However, real-time scheduling is supported by proper extensions at the kernel-level, plugged within the framework by means of dedicated resource managers. Our current implementation on Linux supports reservation of CPU, disk and network bandwidth. However, additional resource managers supporting alternative real-time schedulers for these resources, as well as additional types of resources, may be easily added.We present experimental results gathered on both synthetic applications and a real multimedia video streaming case study, showing advantages deriving from the use of the proposed middleware. Finally, overhead figures are reported, showing sustainability of the approach for a wide class of complex, distributed, soft real-time applications.

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Section: Real-time Network Schedulingmentioning

confidence: 99%

Modular software architecture for flexible reservation mechanisms on heterogeneous resources

Sójka

Píša

Faggioli

et al. 2011

Journal of Systems Architecture

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“…In the real-time community, many authors designed architectures for QoS-aware resource allocation and scheduling for distributed applications [4]. However, in this kind of approaches, services are already assigned to hosts, whilst this allocation/mapping is one of the variables of our problem.…”

Section: Related Workmentioning

confidence: 99%

A heuristic for optimum allocation of real-time service workflows

Cucinotta

Anastasi

2011

2011 IEEE International Conference on Service-Oriented Computing and Applications (SOCA)

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Abstract-In this paper, the problem of optimum allocation of real-time service workflows over a set of heterogeneous resources is tackled. In previous works, this problem was formally stated in terms of a Mixed-Integer Non-Linear Programming optimization program, that could be solved by recurring to commercial solvers. However, due to the big dimension of the solution space to be searched, finding the absolutely optimum solution: might take too much time in order to be concretely useful; it may preclude the use of these techniques in largescale infrastructures; it makes the technique hardly usable adaptively in response to corrective actions that may be needed when some bad event occurs while the services are running (e.g., hardware-level failures). Therefore, in this paper a heuristic algorithm based on graph-matching is introduced that may find very efficiently a reasonably good, albeit nonnecessarily optimum, solution. The algorithm is described, and its performance assessed by a set of synthetic experiments.

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“…Implementado utilizando o DSRT (Dynamic Soft-Realtime Scheduler ) [NhCN99], um escalonador executado em nível de aplicação que permite alterar a prioridade de processos;…”

Section: Globus Architecture For Reservation and Allocation (Gara)unclassified

“…Além disso, pretendemos utilizar o DSRT (Dynamic Soft-Realtime CPU Scheduler ) [NhCN99], um escalonador em nível de aplicação para limitar a quantidade de recursos que pode ser utilizada pelas aplicações da Grade, permitindo assim que o usuário imponha políticas de compartilhamento de recursos, caso assim deseje.É importante notar que a aplicação de tais políticasé opcional, ou seja, mesmo que tais políticas não sejam aplicadas o InteGrade deve garantir a qualidade de serviço oferecida ao usuário provedor de recursos.…”

Section: Boincunclassified

InteGrade: Um Sistema de Middleware para Computação em Grade Oportunista

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QoS and resource management in distributed interactive multimedia environments

Cited by 23 publications

References 50 publications

Modular software architecture for flexible reservation mechanisms on heterogeneous resources

Modular software architecture for flexible reservation mechanisms on heterogeneous resources

A heuristic for optimum allocation of real-time service workflows

InteGrade: Um Sistema de Middleware para Computação em Grade Oportunista

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