[2020] Fluids on a separate thread?

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I'm confused on factorio's handling of UPS. I remember some Factorio Friday update saying devs successfully moved fluid handling to it's own thread independent of other game updates. Yet a few weeks I read in some comments here that it was rolled back.

What's the state of fluids and UPS and threads? I'd like to know if I'm ok switching for mass solar to nuclear.

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about 4 years ago - /u/Klonan - Direct link

It was never on its own thread.

When updating, each fluid network is updated in parallel. This is still in series with the main game update step.

So its like,

Update input -> Update all fluid networks -> Update entities

(simplified)

And the fluid network step its split across multiple threads.

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