Mysqltuner

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FAQ

name resolution is active : a reverse name resolution is made for each new connection and can reduce performance

Option skip-name-resolve

 

Table cache hit rate: 0%

hmm

innodb_log_file_size should be (=16M) if possible, so InnoDB total log files size equals to 25% of buffer pool size

That's current situation, so change log_file_size together with innodb_buffer_pool_size