最近在进行伪php多进程处理，就是提升浏览器同时请求数目，来达到拆分数据，同时处理的
作用，但是在浏览器端同时向apache请求100个以上的url后发现php链接（mysqli长链接）的有效连接数（正在处理数据的mysqlconnections） 最多只能是6个不能够再更多
测试机器 阿里云 1核cpu 2g内存 php套件使用的是phpstudy 2014.10 MySQL 用的是PHPstudy内置的
我是用的是mysql的命令
show processlist；虽然不是很准确但是在连续几百次（使用navicat 的系统监视 5s秒钟自动刷新一次）查看结果后发现结果发现有效数目保持在6个一下。
请问大家对服务器性能调优这方面给解释下
mysql的max connections 我设置的是1000
apache的用的是默认设置
<code>mpm_prefork_module startservers 5 minspareservers 5 maxspareservers 10 maxclients 150 maxrequestsperchild 0 mpmp_worker_module startservers 2 maxclients 150 minisparethreads 25 maxsparethreads 75 threadsperchild 25 maxrequestsperchild 0 </code>
请问大家想提升mysql这边的效率的话该怎么做？
ps 其实我最想问的是如何将这个6提升到10或者12.
回复内容：
最近在进行伪php多进程处理，就是提升浏览器同时请求数目，来达到拆分数据，同时处理的
作用，但是在浏览器端同时向apache请求100个以上的url后发现php链接（mysqli长链接）的有效连接数（正在处理数据的mysqlconnections） 最多只能是6个不能够再更多
测试机器 阿里云 1核cpu 2g内存 php套件使用的是phpstudy 2014.10 MySQL 用的是PHPstudy内置的
我是用的是mysql的命令
show processlist；虽然不是很准确但是在连续几百次（使用navicat 的系统监视 5s秒钟自动刷新一次）查看结果后发现结果发现有效数目保持在6个一下。
请问大家对服务器性能调优这方面给解释下
mysql的max connections 我设置的是1000
apache的用的是默认设置
<code>mpm_prefork_module startservers 5 minspareservers 5 maxspareservers 10 maxclients 150 maxrequestsperchild 0 mpmp_worker_module startservers 2 maxclients 150 minisparethreads 25 maxsparethreads 75 threadsperchild 25 maxrequestsperchild 0 </code>
请问大家想提升mysql这边的效率的话该怎么做？
ps 其实我最想问的是如何将这个6提升到10或者12.
这个暂时没有答案，应该是提升mysql的性能，优化mysql语句，整合多次读写为一次读写
我觉得前端方面优化的空间也很大
尽量不要使用长连接，在服务器和MySQL（阿里云RDS）之间可以架设一个atlas充当连接池。此外max_connections也太小了……
另外考虑一下PDO连接方式而非mysqli
连接数据库最好用连接池。最大连接数根本没必要1000个。优化每一条sql语句就行。并发没上一千个，根本没必要负载均衡之类的东西，tomcat、Apache都默认配置就行了。
提升并发性能，瓶颈肯定在于sql操作。能优化到每条0.1秒以内。再去考虑其他的路子
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