PostgreSQL Performance Tuning in 2026: The 5 Production Disasters That Taught Me Everything PostgreSQL Production 2026 Guide May 11, 2026 · 13 min read PostgreSQL Performance Tuning in 2026: The 5 Production Disasters That Taught Me Everything 👤 Tahar Maqawil — Senior Application Developer & Database Engineer Informaticien d'Application · Systems Architect · Bioquro 10+ years tuning PostgreSQL databases from 50MB hobby projects to 2TB production systems I want to be upfront about something: every PostgreSQL tuning guide you have ever read — including ones from people much smarter than me — gives you the right answers to the wrong question. They tell you what to set shared_buffers to. They tell you to enable pg_stat_statements . They give you a list of 20 parameters and a general formula. What they do not tell you is what it looks and feels like when your database is actively on f...
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