阐述了网络监测的原理和技术，介绍了网络监测系统的实现过程，并对系统的性能优
化进行了讨论。-Expounded the principle of network monitoring and technology, introduce the network monitoring system for the realization of the process, and optimize the performance of the system are discussed.
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SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.087327s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002067s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001916s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002469s ]
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