# Essential concepts for RDS for PostgreSQL tuning
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Before you tune your RDS for PostgreSQL database, make sure to learn what wait events are and why they occur. Also review the basic memory and disk architecture of RDS for PostgreSQL. For a helpful architecture diagram, see the [PostgreSQL](https://en.wikibooks.org/wiki/PostgreSQL/Architecture) wikibook.

**Topics**
+ [RDS for PostgreSQL wait events](PostgreSQL.Tuning.concepts.waits.md)
+ [RDS for PostgreSQL memory](PostgreSQL.Tuning.concepts.memory.md)
+ [RDS for PostgreSQL processes](PostgreSQL.Tuning.concepts.processes.md)

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Amazon RDS. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query AmazonRDS` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).