brenogazzola

# Rails + PostgreSQL Performance Audit Playbook

A field-tested method for finding what's actually burning your database CPU, built for a
Rails monolith on managed PostgreSQL (Cloud SQL / RDS / etc.). It assumes no APM — just
`pg_stat_statements`, `pg_stat_activity`, and discipline. It pairs well with an LLM: point
one at this file plus your query results and let it do the attribution; the queries below
are ordered so a human can run them and paste results back.

## The core idea

martinjaimem

# Github Actions should look something like:

# name: CI
# on: [pull_request]
# jobs:
#   build_review_app:
#     name: Review app builder
#     runs-on: ubuntu-latest
#     steps:
#       - name: Checkout code