实例分析：MySQL优化经验_MySQL
同时在线访问量继续增大，对于1G内存的服务器明显感觉到吃力，严重时甚至每天都会死机，或者时不时的服务器卡一下，这个问题曾经困扰了我半个多月。MySQL使用是很具伸缩性的算法，因此你通常能用很少的内存运行或给MySQL更多的内存以得到更好的性能。
安装好mysql后，配制文件应该在/usr/local/mysql/share/mysql目录中，配制文件有几个，有my- huge.cnf、my-medium.cnf、my-large.cnf、my-small.cnf，不同流量的网站和不同配制的服务器环境，当然需要有不同的配制文件了。
一般的情况下，my-medium.cnf这个配制文件就能满足我们的大多需要;一般我们会把配置文件拷贝到/etc/my.cnf，只需要修改这个配置文件就可以了，使用mysqladmin variables extended-status
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