MySQL comes with default optimizer and common bottlenecks

MySql Query Optimizer: MYSQL default optimization that comes with

mysql common bottlenecks:

1. CPU: CPU saturation generally occurs when the data into memory or reading data from the disk when
2. IO: disk I / O bottleneck occurs when data is loaded into the memory capacity is much larger than
3. Server hardware performance bottlenecks: top, free, iostat and vmstat to view the performance state of the system