The cycle time must be an even multiple of the repaint interval, so if the interval is 100, then the cycle time could be 200, 500, or 1000 — but not 750.

If issued at regular intervals during a normal production or test cycle, you can capture and track the number of messages that have been processed during that interval and the queue high depth.

This shows that the effective time interval of earthquake events is only about 1000 years, and the maximum cycle of seismic activity that we are allowed to infer does not exceed 500 years.