Ready, steady, crash!
summary
Uses artillery to run scripted load with four phases: warm-up 10 rps for 60s, ramp 10→25 rps over 120s, cruise 25 rps for 1,200s, and crash 100 rps for 30s. Sends metrics to Graphite/Grafana; observes latency jump from ~68ms to >30,000ms and >90% 500/503 errors at ~20 rps. Isolates a GraphQL query (fetching ~600 systems) causing 100% CPU on Neo4j via neo4j-graphql-js; increasing DB size (8GB RAM, 2 cores) worsens performance and the failure disappears overnight without a definitive root cause.
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