Reliability of [after -periodic]?

Hi Folks,

I would like to implement an out-of-band management task using the

[after $time -periodic { script }]

I've already used this command in the past for some shortliving and also somewhat unimportant tasks. My current scenario would be an longtime task (aka. forever!) and also somewhat important task, where the health of the entire system would depend on the reliable execution of the provided script.

when RULE_INIT {
    after 86400000 -periodic {
         Insert some config plane management tasks
    }
}

Any experience with

[after -periodic]

Do someone have additional information on the performance impact of using such syntax? How many CPU cycles would be required in the background to maintain the "Once Every Day" counter?

Cheers, Kai