The main task of the P2P network is to improve the throughput of the system
so as to provide services for more users.Network throughput directly affects the P2P service availability.In order to improve the availability of the P2P network services
analyze the P2P network bandwidth utilization
put forward an optimized routing model based network throughput
and finish optimization of network throughput through genetic algorithm. Finally
the experimental analysis of the algorithm was given
and verify the effectiveness of the service routing algorithm.