## Memory RSS / heap / event-loop / GC for engine + dashboard processes

engine
engine sample stale

RSS
  —
Heap used / total
  —
External
  —
Event-loop lag p50 / p99
  —
Last GC pause
  —
Uptime
  —

● RSS ● heapUsed (last hour)
dashboard

RSS
  —
Heap used / total
  —
External
  —
Event-loop lag p50 / p99
  —
Last GC pause
  —
Uptime
  —

● RSS ● heapUsed (last hour)
Stalls engine + dashboard for several seconds, writes a 50–200 MB `.heapsnapshot` per process under `engine/diagnostics/` (load in Chrome DevTools → Memory → Load). Rate-limited to 1 / 60 s; only the 5 most-recent per process are kept.