What Is Connection Pooling?
Connection pooling reduces the overhead of frequent database connections by reusing existing ones. Tools like PgBouncer and Pgpool-II provide efficient pooling for PostgreSQL. This improves performance and scalability under high traffic.
Why It Matters for PostgreSQL Performance
In PostgreSQL performance work, Connection Pooling affects throughput, latency, or operational reliability depending on workload and configuration.
Practical Benchmarking Context
When benchmarking with pgbench, track how Connection Pooling changes behavior across scale factor, client concurrency, and storage conditions.
Use this term together with workload shape, concurrency level, and scale factor when interpreting pgbench outputs. Isolated values can be misleading without full run context.
Example
Popular Tool: PgBouncer