Will PostgreSQL withstand 6000 RPS on write?

The ability of PostgreSQL to sustain 6000 RPS (records per second) depends on many factors: hardware, server configuration, record characteristics, indexes, transaction size, and query optimization.

Overall, PostgreSQL can handle thousands of write operations per second with proper tuning and powerful hardware. To achieve 6000 RPS, you should:

• Use batch inserts instead of single records.
• Configure parameters (e.g., wal_buffers, checkpoint_segments, max_wal_size).
• Minimize the number of indexes, as they slow down writes.
• Use SSDs for data storage.
• Optimize transactions by avoiding long locks.

If the load is distributed and queries are optimized, 6000 RPS is an achievable goal. However, precise testing under specific conditions is necessary for an exact answer.