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原文链接：http://www.shaoqun.com/m/a/43307.aspx前言：最近Oracle MySQL在其官方Blog上贴出了 5.6中一些变量默认值的修改。其中innodb_old_blocks_time 的默认值从0替换成了1000（即1s）关于该参数的作用摘录如下：how long in milliseconds (ms) a block inserted into the old sublist must stay there after its first access before it can be moved to the new sublist. Increa 阅读全文