How much load can PostgreSQL withstand?

The load that PostgreSQL can handle depends on many factors: hardware, server configuration, query nature, indexing, data volume, and database settings.

Overall, PostgreSQL is capable of handling thousands of concurrent connections and performing hundreds of thousands of operations per second with proper optimization. For example, on a powerful server with SSD and sufficient RAM, high throughput for OLTP systems can be achieved.

To assess the load, it is important to consider:

• Number of concurrent connections
• Complexity and type of queries (read/write)
• Indexing and data structure
• Configuration settings (work_mem, shared_buffers, etc.)
• Hardware resources (CPU, RAM, disk)

For high-load systems, replication, sharding, and caching are often used for scaling.

Example: In real projects, PostgreSQL successfully handles loads with tens of thousands of requests per second with proper architecture.