Difference between globalstep and abm?

[Milan*]

Hi there,

as i read, adm's can cause perfomance trouble for the game - now i read about globalstep.
I am wondering what the differences are exactly between them and if globalstep is faster than abm.

[rubenwardy]

ABMs are run ON nodes. So they may be called multiple times per tick if you have multiple nodes matching the query.

Global steps run ONCE a tick - a tick is a step. So the function runs once every global server step.

Minetest.after is recommended if you want to run a function at intervals that isn't every server step

Timers run ON a single node's position

[paramat]

The speed depends on the actions triggered.
ABMs only run within 3 mapblocks (48 nodes) of players.
The globalstep is 10-20 times per second.

[Milan*]

Thank you both, i think it helped me to understand :)