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Each PostgreSQL database has its own configuration files. It is recommended to carefully review and edit the tunable parameters of postgresql.conf configuration file to meet the specific needs of the database workload.
Values for configurable parameters like data_directory, port, max_connections, shared_buffers, min_wal_size, max_wal_size can be specified based on the system configuration. The recommended value for these tunable parameters depends on the overall system resources available.
For tuning the PostgreSQL parameters, online tools can be used. For more information, see the following example, Postgres Tunable parameters.