| 基于设备轮询机制对频繁中断响应的改进 |
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| 引用本文： | 王亚,于干,程向阳.基于设备轮询机制对频繁中断响应的改进[J].阜阳师范学院学报(自然科学版),2012(3):65-68. |
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| 作者姓名： | 王亚 于干 程向阳 |
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| 作者单位： | 阜阳师范学院计算机与信息学院;阜阳师范学院信息工程学院 |
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| 基金项目： | 安徽省优秀青年人才基金项目(2011SQRL173);安徽省质量工程项目(20101987)资助 |
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| 摘 要： | 对目前存在的数据包捕获机制进行分析研究,发现影响捕包性能的主要因素在于:数据包在传输过程中冗余的拷贝、频繁的中断响应以及上下文切换所造成的开销。主要针对影响捕包性能因素之一—频繁的中断响应,分析网卡工作方式和传统捕包平台的数据包传输过程,运用设备轮询机制改进频繁的中断响应,以实验进行验证并对数据结果加以分析。
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| 关 键 词： | 设备轮询机制 NAPI 中断 |
Improvement of frequent interruption response based on device polling mechanism |
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| Institution: | WANG Ya1,YU Gan2,GHENG Xiang-yang2(1.School of Computer and Information,Fuyang Teachers College,Fuyang Anhu 236037,China; 2.College of Information Engineering,Fuyang Teachers College,Fuyang Anhui 236037,China) |
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| Abstract: | On the analysis of current packet capture mechanism,we discover the main factors of influence of packet capture performance.They are packet data redundant copy during transmission,frequent interruption and the overhead caused by context switching.A factor mainly affects packet capture performance,that is frequent interruption response.Analysing the working mode of network card and data packet transmission process on the traditional packet capture platform.Using the device polling mechanism improve frequently interrupt response.It is verified with experiments and the data results are analysed. |
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| Keywords: | device polling mechanism NAPI interrupt |
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