An optimized concurrent network system software supporting effective multi‐session streaming in a multimedia appliance
Gi‐Hoon Jung, Soon Ju Kang · Concurrency and Computation Practice and Experience · 2010
Abstract This paper describes an effective concurrent network system software architecture for a high‐throughput multi‐session streaming service with an appliance. The in‐home streaming service is emerging in‐home network environments, but concurrent‐processing performance of the general communication system software is not enough to guarantee the deterministic transmission quality for high‐throughput multi‐session streaming service with common consumer appliances. In order to maximize concurrency of the multi‐streaming applications, this paper proposes packet magazine (PM) software architecture for the high‐throughput multi‐session streaming service with the general operating system and the network adapter. The PM handles a series of data structures of packets and descriptors in the application, for both minimizing the unpredictable processing time inside a kernel (device driver) and maximizing concurrency of the multi‐session streaming process. The proposed concept also aims to strengthen the application program's role in the streaming process by assigning the responsibility of the transmission‐buffer management. The proposed idea is experimentally verified with an IEEE1394‐based multimedia streaming test‐bed network. The results show that the optimized concurrent software with general purpose hardware can guarantee the deterministic quality for multi‐session streaming service. Copyright © 2010 John Wiley & Sons, Ltd.