Discrete time stepNUMEN calls it: the tick
Everything starts with a heartbeat.
There is no event loop, no framework, no scheduler handed down from a runtime. There is one integer counter that increments, and every single thing the system does happens inside one increment of it. That is the tick.
The clock source is RDTSC — the CPU's own cycle counter, read directly. The loop is pinned so that one tick lands every 1/85th of a second. Nothing is asynchronous. Nothing is deferred. If work does not fit inside a tick, it does not happen inside that tick.
The upside of a fixed quantum is that every measurement on this page has the same denominator. The downside is that the whole machine is single-threaded and strictly sequential — which is a real ceiling, and it is listed in the limitations at the bottom.
- Tick rate
- 85 Hz nominal
- Clock source
- RDTSC, read directly
- Concurrency
- None — one core, sequential











