The original title is: "Scaling PostgreSQL Throughput: Achieving 4x Performance with PgBouncer"

Short summary

A technical deep-dive on using PgBouncer to solve PostgreSQL connection bottlenecks, achieving 4x throughput improvement. It explains PostgreSQL's process-per-connection overhead and how PgBouncer's connection pooling mitigates forking cost, memory footprint, and context switching. The article covers three pooling modes: session, transaction, and statement pooling, each with distinct tradeoffs.

• •PgBouncer connection pooling delivered 4x throughput improvement by reusing PostgreSQL connections
• •PostgreSQL's process-per-connection model creates forking, memory, and context-switching overhead under high concurrency
• •Three pooling modes (session, transaction, statement) offer different concurrency vs feature-safety tradeoffs

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