[MySQL] Monitoring item-- innodb_buffer_pool hit rate calculation
Innodb buffer Hit ratios calculation:
innodb_buffer_read_hits=(1-Innodb_buffer_pool_reads/Innodb_buffer_pool_read_requests) * 100%
If innodb_buffer_pool hit rate is used as a monitoring item, it is recommended to set 90% as the trigger value. If it is lower than 90%, consider increasing innodb_buffer_pool_size.
The following is taken from 5.6 Official Manual:
