| P2P网络资源服务性能分析 |
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| 引用本文： | 刘毅,毛军鹏,沈昌祥,崔艳莉. P2P网络资源服务性能分析[J]. 计算机工程与应用, 2008, 44(36): 7-10. DOI: 10.3778/j.issn.1002-8331.2008.36.002 |
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| 作者姓名： | 刘毅 毛军鹏 沈昌祥 崔艳莉 |
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| 作者单位： | 解放军信息工程大学,电子技术学院,郑州,450002;解放军信息工程大学,电子技术学院,郑州,450002;解放军信息工程大学,电子技术学院,郑州,450002;解放军信息工程大学,电子技术学院,郑州,450002 |
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| 基金项目： | 国家242信息安全计划 |
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| 摘 要： | P2P网络针对具体资源能提供多少搜索和传输服务能力?资源搜索的成功率和查全率是多少?目前，针对类似问题的研究还较少发现。针对非结构化P2P网络，建立P2P网络排队模型，研究P2P网络针对具体资源提供的搜索服务能力、传输服务能力以及资源搜索成功率和查全率；研究发现：资源搜索的查全率只与P2P网络属性相关，而与具体资源的数量无关；当TTL≥4时，可以保证多数情况下资源搜索的成功率和查全率。
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| 关 键 词： | 对等网络 服务模型 性能分析 |
| 收稿时间： | 2008-09-01 |
| 修稿时间： | 2008-10-6 |
Resource service performance analysis of P2P network |
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| LIU Yi,MAO Jun-peng,SHEN Chang-xiang,CUI Yan-li. Resource service performance analysis of P2P network[J]. Computer Engineering and Applications, 2008, 44(36): 7-10. DOI: 10.3778/j.issn.1002-8331.2008.36.002 |
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| Authors: | LIU Yi MAO Jun-peng SHEN Chang-xiang CUI Yan-li |
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| Affiliation: | Institute of Electronic Technology，the PLA Information Engineering University，Zhengzhou 450002，China |
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| Abstract: | How much service performance of searching and transmitting is provided by P2P network for a concrete resource? How much success ratio and recall ratio of resource’s searching of existing P2P network is?Rare research is deepened about those questions.For unstructured P2P network，thecalculating method of service performance of concrete resource is provided，and the success ratio and recall ratio of resource’s searching are analyzed.It concludes recall ratio of resource’s searching is only related with topology character of P2P network itself，and not related with resource’s quantity.Otherwise，when TTL≥4，mostly searching process can reach higher success ratio and recall ratio. |
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| Keywords: | Peer-to-Peer service model performance analysis |
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