I have published my website on Amazon EC2 (Singapore region) and I have used MySQL RDS instance for the data storage. Everything is working very fine except performance.
It seems that all queries, but especially select statements, are performing very slow. If I check this issue on my local PC, it is working very well. But when I try to get data from RDS instance, it is slow. Some of the select statements takes 2-3 seconds to fetch data.
I have properly tuned up all table indexes, and normalized/de-normalized as required. I have made all necessary settings on RDS custom parameter group eg. max_connection, buffer etc. (don't know if I am something missing), but it has not helped. Can someone help me figure out the issue?