Provisão de QoS Adaptável em Sistemas Operacionais: O Subsistema de Rede

Marcelo F. Moreno, Antônio T. A. Gomes, Sérgio Colcher, Luiz F. G. Soares

The progressive demand for distributed multimedia applications makes evident the need for end-to-end quality of service (QoS) provisioning. Particularly, operating systems must guarantee that the resources under their control are managed to fulfill the requirements of each application, whether they are located at end systems, switches or routers. This work proposes the definition of an architecture for QoS provisioning on operating systems, focusing on the packet queuing subsystem. The instantiation of the architecture is based on a few modifications to the standard Linux kernel, adding some other desirable features such as runtime service adaptation.

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