A technique for QoS-based system partitioning

Quality of service (QoS) has been an important topic of many research communities. Combined with an advanced and retargetable compiler, variability of applications-specific very large instruction word (VLIW) processors has been shown to provide an excellent platform for optimizing performance under area constraints. Although media servers and others that are natural candidates for QoS management are embedded systems and implementing QoS management using the applications-specific VLIW platform can provide a new horizon for efficient and effective system design, until now no effort has been reported. In this paper, we introduce a QoS-based system partitioning scheme that addresses the need for maximizing net benefit of a system under resource constraints by exploiting applications-specific VLIW processors. The approach utilizes the modern advances in compiler technology and architectural enhancements that are well matched to the compiler technology. Experimental results indicate that the approach presented in this paper is very effective in system partitioning for QoS given a set of heterogeneous processors.