Tasks run too often

[trideeindhoven]

I seem to be running into a problem with your library. I am running this on an ESP32 and the tasks fire WAY too quickly:

mcron.init_timer()
mcron.insert(mcron.PERIOD_MINUTE, range(0, mcron.PERIOD_MINUTE, 10), 'minute_10s', run_task())

I expect run_task() to run every 10 seconds, but it looks like it runs faster than every 100ms.
I am sure i am misconfiguring something here, but as far as i can see mcron is using the hardware esp timers, so it is not something like the clockspeed.
I hope you can help me. Thank you!

Device board: ESP32
Micropython version: 1.11

[fizista]

MCRON is not suitable for running tasks with millisecond accuracy. Of course, you can increase the accuracy by using the timer_period parameter in the init_timer function.

You have to assume that the task start time depends on many factors:

• when the job was created (insert method).
• whether the countdown should start while the task is being created e.g. insert(... , from_now=True)
• the period of time for checking the conditions of calling tasks init_timer(... , timer_period=250)
• number of tasks running at the same time
• tasks called earlier, which will not manage to finish before calling other tasks

[trideeindhoven]

Hello fizista,

Thank you for your reply. I am not looking for ms accuracy. What i am trying to say is that my task SHOULD run every 10sec, but is now running every ~50-100ms. So the task is running very often. I have commented out all other tasks, so i know this is the only task running.

[trideeindhoven]

As usually the solution was something simple. Documenting here for other:

the function run_task() used to be a while True: with a sleep() in it. I removed the sleep() but obviously forgot to remove the while True: at the top of this large(ish) function. So it now works perfectly.
Also: i was using def run_task():, but you need to use def run_task(callback_id, current_time, callback_memory): (exactly like the example, but this is important for your program to work.