Im reading on mysqlperformanceblog the way to calculate the cache hits ratio in mysql server. I did the operation but Im not sure. I have this values:
Qcache_hits = 365313
Com_select = 1647910
365313 / (365313+1647910) = 365313 / 2013223 = 0,18
so current hits ratio of query cache is 18%? It’s ok?