I have some slow-query in mysql log.
I tune mysql with mysqltuner.
Sent message and Billing calculate are very very slow. ( I keep onlu 9 days msg, and old msg will be delete )
here mysql slow log :
# Query_time: 0.000906 Lock_time: 0.000094 Rows_sent: 1 Rows_examined: 622 SET timestamp=1598120791; SELECT SUM(amount) AS credit FROM playsms_featureCredit WHERE uid='33' AND flag_deleted='0'; # User@Host: admin[admin] @ localhost  # Thread_id: 172 Schema: playsms QC_hit: No # Query_time: 0.176466 Lock_time: 0.000104 Rows_sent: 0 Rows_examined: 62766 SET timestamp=1598120791; SELECT SUM(A.charge) AS billing FROM playsms_tblBilling A INNER JOIN playsms_tblSMSOutgoing B ON A.smslog_id=B.smslog_id AND A.status='1' AND B.uid='33';