摘要：
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 oldsublistmust stay there after its first access before it can be moved to the new sublist.Increasing this value protects against the buffer po 阅读全文
