Constant Bandwidth vs Proportional Share Resource Allocation
Luca Abeni, Giuseppe Lipari and Giorgio Buttazzo
Scuola Superiore S. Anna, Pisa
Due to the success of new multimedia technologies, there is a
great interest for providing operating system support to multimedia
applications. In particular, the problem of resource allocation has been
widely addressed in the last years. Many solutions proposed
in literature are based on proportional share resource allocation,
such as WFQ, WF2Q, EEVDF, or SFQ.
In a previous paper, we showed how to use the real-time theory to perform
resource reservation according to a Constant Bandwidth allocation.
In this paper we compare Proportional Share and Constant Bandwidth
resource allocation strategies, by showing advantages and drawbacks
of both techniques.