A hardware accelerator for controlling access to multiple-unit resources in safety/time-critical systems
by Philippe Marchand, Purnendu Sinha
International Journal of Information and Communication Technology (IJICT), Vol. 1, No. 1, 2007

Abstract: In multitasking, priority-driven systems, resource access-control protocols such as Priority Ceiling Protocol (PCP) reduce the undesirable effects of resource contention. In general, software implementation of these protocols entails costly computations that can degrade the system performance to unacceptable levels. In this paper, we present the design for a hardware accelerator to execute the PCP functionality for controlling access to multiple-unit resources and illustrate that the proposed implementation accelerates the execution time by a factor of up to 30.

Online publication date: Thu, 19-Apr-2007

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