Have you analyzed the database performance?

Yes, database performance analysis includes several key steps:

• Metrics collection: query execution time, CPU and memory load, lock counts, index usage.
• Query profiling: using EXPLAIN, EXPLAIN ANALYZE (for PostgreSQL), SHOW PROFILE (MySQL), or similar tools to understand which queries are slow and why.
• Query optimization: rewriting queries, adding or modifying indexes, changing table structures.
• Monitoring: using specialized tools (e.g., pg_stat_statements for PostgreSQL, Percona Monitoring for MySQL) for continuous performance tracking.

Example of analysis using EXPLAIN in PostgreSQL:

EXPLAIN ANALYZE SELECT * FROM users WHERE email = 'example@example.com';

This will show the query execution plan and time for each step, helping to identify bottlenecks.