🚀 数据库性能对比测试工具 | 支持 SQLite、MySQL、MariaDB、PostgreSQL、SQL Server、Oracle、MongoDB 等多种数据库

Realistic single-node PostgreSQL write saturation benchmark. Finds the actual committed-writes-per-second ceiling using ACID multi-statement transactions, 5 indexes, production timeouts, and fsync=on. Not pgbench.

Production-grade benchmark comparing PostgreSQL scheduler patterns: 845ms → 3ms using partial indexes, advisory locks, and SKIP LOCKED. 500k URL simulation with real production patterns.