shared_buffers and work_mem, without the folklore
The cache PostgreSQL owns beside the kernel's, the per-operation ceiling every connection multiplies, and the sort that spills to disk — measured before they are set.
22 minutesTechnical content last reviewed on 16 Sept 2026
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What this lesson builds
- Administering PostgreSQL: access, connections and growth
- Reading system state without over-reading it
End of the course
Git for administrators: a history you can trust
Answer "what changed?" with a command instead of a memory: commits, history, remotes and release tags.
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