| Summary: | A kind of P2P caching mechanism based on the request and probability is proposed to achieve reliable computing of P2P under a dynamic and unstable environment. Under the circumstance of providing a large number of requests at a user node, this mechanism model adopts P2P caching relationship between request and probability to carry out an in-depth research and analysis of the improvement and optimization of caching management system in the traditional demand system by the probability caching mechanism. Due to the localization and deficiency in the probability caching mechanism, and behavioral characteristics of the user, based on the probability caching, P2P caching mechanism based on the request and probability is established based on the user request. The simulation experiment demonstrates that the caching mechanism designed based on the request and probability can significantly improve the caching hit ratio and reduce the number of query jump, thereby optimizing the performance of caching mechanism.
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