First, enable the slow_query_log and set long_query_time to something reasonable (e.g., 0.5s). This will give you the exact queries that need attention.
Hello everyone,
I'm working on a legacy MySQL application and some queries have become painfully slow after recent data growth. I've tried adding indexes, but the performance is still not where it should be. Could anyone share strategies, tools, or best practices for profiling and optimizing complex queries?
Thanks in advance!