SELECT pid, now() - pg_stat_activity.query_start AS duration, query
FROM pg_stat_activity
WHERE (now() - pg_stat_activity.query_start) > interval '5 minutes';
EXPLAIN to analyze your queries:EXPLAIN SELECT * FROM your_table WHERE your_column = 'your_value';
VACUUM and ANALYZE to clean up dead rows and update statistics for better query planning:VACUUM VERBOSE ANALYZE your_table;
checkpoint_timeout and max_wal_size in postgresql.conf to reduce checkpoint frequency:checkpoint_timeoutmax_wal_sizepg_wal) to a separate disk to reduce I/O on the main disk. This requires changes in postgresql.conf:wal_dir to a directory on a separate disk.iostat is useful:iostat -dx 2
(Perfect for DevOps & SREs)
(Perfect for DevOps & SREs)



