PostgreSQL Performance Tuning Part II Key Parameters`: The article discusses key parameters to optimize database performance in PostgreSQL, including `max_worker_processes`, `max_parallel_workers`, `max_parallel_workers_per_gather`, `max_parallel_maintenance_workers`, `autovacuum_max_workers`, `max_connections`, `shared_buffers`, `work_mem`, and `maintenance_work_mem`. These parameters can be adjusted to improve query execution speed and reduce resource contention. The article provides recommendations for setting these parameters based on system resources, workload characteristics, and specific use cases. It also highlights the importance of monitoring and fine-tuning these parameters to ensure optimal performance. Additionally, it mentions the need to consider connection pooling and memory allocation when adjusting these parameters.