This paper includes two major works: the first is to research the feasibility of deploying network flow related applications in virtual environment of OpenVZ by evaluating the performance effect of virtualization, CPU affinity, frame length and different mechanisms of packet capture; the second is to optimize the performance of packet capture in virtual containers of OpenVZ. We try to apply PF_RING-like mechanism, a Linux kernel module for packet capture, to virtual containers of OpenVZ for the first time, add virtualization support for it and implement a new protocol family PF_PCAP that inherits merits of PF_RING and supports packet capture in virtual containers of OpenVZ. Through RFC2544, the way of measuring throughput, on 1Gbps Ethernet we measure the throughput of PF_PCAP and compare it with Libpcap. The throughput of PF_PCAP for those frames whose length is under 1024 bytes has improved 9% to 15%.
The development concept of higher education will have a direct impact on the development direction of higher education, because the concept usually reflects people's understanding of the law of higher education, and the current education concept restricts the scale, quality, structure and efficiency of higher education to a certain extent. Throughout the evolution of the world's higher education development concept, it has generally experienced the overall coordination of the economic growth, the internal and external laws, and the people-centered sustainable development. This paper hopes to provide effective help by joint intelligent algorithms. In this paper, the particle swarm optimization algorithm in intelligent optimization algorithm and the FCM algorithm in cluster analysis are studied in depth, and the two are merged together to propose a fuzzy clustering algorithm based on improved particle swarm optimization algorithm. The main research contents of this thesis include: Firstly, the PSO algorithm is improved, and the random search step levy flights and PSO algorithm are repeatedly called by the iterative mode by introducing the eagle strategy. After improvement, the ESPSO algorithm can achieve a balance between global search and local development, and make the particles have more satisfactory search ability and convergence effect. Then the improved PSO algorithm is integrated into the FCM algorithm to solve the above problems of the FCM clustering algorithm and improve the clustering effect. The experimental results show that the improved espso algorithm and FCM algorithm are suitable for actual data. The simulation results show that the algorithm has better clustering effect than the traditional clustering algorithm.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.