Abstract: When data transmission speed of the network traffic monitoring system is too fast,the data packet loss,transmission stops,response error will occur.To resolve the problem,this paper proposed evaluation index for the system which uses the system throughput as core index to evaluate the system optimization performance throught the index;selects the network protocol analysis system for multi-core optimization research,taking GTP-AS system as a specific objective optimization,according to the system performance bottleneck,puts forward a set of multi-core platform optimization strategy .The experiment proves when number of the core processor computing core is increased to 7,a number of kernel optimization of network protocol analysis system throughput can reach 391.73% of the optimized priorty,effectively improves the performance of the system.

Key words: Multi-core processors,Network traffic monitoring system,Multicore optimization,Throughput,Network protocol