Are actors *true* multithreading? Or is there something wrong with my script

[majdTRM]

This section seems to explain the reason.

@EthicalRobot

It’s important to understand that regions of parallel execution (the scripts on various Actors) run in parallel, but the engine waits for all parallel sections to finish before proceeding with serial execution. In other words, to take advantage of this feature you can’t run a very long computation that takes seconds in parallel to the rest of the simulation - you have to break it into small pieces, but you can run these pieces on multiple cores. Your mental model should be “let me run updates for 1000 NPCs in parallel with each update potentially running on a separate core” instead of “let me run this really slow function that sequentially updates all NPC states in parallel to the rest of the world processing”.

Unless someone else can chime in and explain another reason why, I’ll just mark this as solved.