It seems every turbine manufacturer has its own policy. On the Turbomeca (helicopter) you counted cycles by each start cycle and an increment was then added for each time the N1 dropped below a certain figure. Forget the exact numbers but for example <70% add .1, <80% add .05. In our operation not uncommon to have a cycle count >2 for a flight. Aircraft was fitted with automatic counters but always had troubles reconciling the number given and think engineering gave up on them.