快速预热buffer_pool
mysql管理之道，优化P82页

##innodb_buffer_pool_dump_at_shutdown=1
#innodb_buffer_pool_dump_now=1--关闭时开启这两个参数
innodb_buffer_pool_load_at_startup=1
innodb_buffer_pool_load_now=1---启动时开启这两个参数

关闭日志：

2016-07-13T07:58:55.450965Z 0 [Note] InnoDB: Dumping buffer pool(s) to /var/lib/mysql/ib_buffer_pool
2016-07-13T07:58:55.451435Z 0 [Note] InnoDB: Buffer pool(s) dump completed at 160713 15:58:55

开启日志

2016-07-13T08:00:15.642531Z 0 [Note] InnoDB: 5.7.9 started; log sequence number 2489080
2016-07-13T08:00:15.643271Z 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool

注意: