功过模拟单功能流水线调度过程，掌握流水线技术，学会就算流水线的吞吐率，加速比，效率-Merits and demerits of single-function simulation pipeline for the activation process, master pipeline technology, even if the pipeline throughput Institute, speedup, efficiency
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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:0.087021s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001165s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001144s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003599s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000972s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001283s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 188214 [ RunTime:0.001244s ]
