作业A和作业B串行（不采用缓输出技术）的时序图
作业A和作业B并发（采用缓输出技术）情况下的一种时序图-Job A and job B serial (non-use of slow output technology) and timing diagram concurrent operation A and operation B (using slow output technology) in case of a timing diagram
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001520s ]
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:0.090898s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001249s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002033s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001220s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003845s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001080s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003373s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015984s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001451s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 5138 [ RunTime:0.001364s ]
