openmw/mscripts/fpsticker.mn

// Small script that prints the FPS to screen with regular intervals.
singleton FPSTicker;

import io, timer;

ulong lastFrame;

float delay = 1.5;

state tick
{
 begin:
  sleep(delay);
  print("fps:", (frames.counter-lastFrame) / delay);
  lastFrame = frames.counter;
  goto begin;
}