[0.17.X] Optimize UPS @ Electric Networks plz

[YunoAloe]

In debug mode my electric network is shown to consume as much time as entities, at 3 msec each currently, and they grow together as I build my base. I'm playing ~100 mods of ABPy+ game, consisting almost entirely from top-trending stuff. I can't find anyone on the internet mentioning electric network being the top consumer of UPS. Can somebody point me to any tips on optimizing electric networks, like replace all poles with substations? Maybe some known mods can cause this, like Factorissimo? I set electric updates to be 2 times less often in it, it noticeably (10-20%) reduced time usage by Factorissimo script, but not by electric network.
Also, is there a way to further debug this?

Added some screenshots.
3.4 for entities, 2.3 for electric network. The base is not big for now:

20190516225458_1.jpg (669.26 KiB) Viewed 2392 times

Everything is on one network (enabled show-network-connected-entities & show-energy-sources-networks):

20190516225333_1.jpg (1.12 MiB) Viewed 2392 times

But each factory building has it's own network:

20190516225800_1.jpg (550.35 KiB) Viewed 2392 times

And I have about 80 of those buildings. Does Factorio not like multiple networks perhaps?

Also attached modlist with mods settings, should they be needed.

[YunoAloe]

Around half of my base is in factories. After I uprooted all factory buildings (I assume they still exist as surfaces, with their contents and respective networks, just not connected anymore and power-drained), timing dropped from 2.3 to 1.5. After I disabled Factorissimo, timing dropped to 0.27.

[orzelek]

Around half of my base is in factories. After I uprooted all factory buildings (I assume they still exist as surfaces, with their contents and respective networks, just not connected anymore and power-drained), timing dropped from 2.3 to 1.5. After I disabled Factorissimo, timing dropped to 0.27.

Thats the drawback of Factorissimo - it needs to transfer all the resources between surfaces in lua. It's pretty efficient but as you get more of them it will show up in stats.

[YunoAloe]

I'd really love someone from Factorio staff to comment on this.

- Is this issue known?
- Is the problem in multiple networks, multiple surfaces, or something else?

And most importantly:
- Do you consider giving electric networks some (threaded?) love like you did to fluids lately? Factorissimo is one of the most popular mods, and the very trending Earendel's Space Exploration is using surfaces too, and there are new ones likely to come. Having performance of 100 electric networks being 5-10 times worse than 1 of same total size is definitely showing potential for improvement.

[Rseding91]

It's working correctly. Electric networks are designed for their primary use-case: one large network. Multiple tiny networks will perform much worse than the one big network.

It's not a "hasn't been optimized for small networks" but a "has been optimized for large networks". You can't get both: making small networks faster would make large ones slower.

Trying to run them in threads also isn't likely to ever happen since the primary use case is one big network which would see zero advantage to being run in another thread and in fact would just run slower due to the thread overhead.

[YunoAloe]

Thanks for commenting. I guess I'll have to unpack half my base from factories then, as with such trend it'll be impossible to finish an ABPy+ game without UPS drops. It's still doable at this point...

[MagmaMcFry]

It's working correctly. Electric networks are designed for their primary use-case: one large network. Multiple tiny networks will perform much worse than the one big network.

In that case I'd really like for Factorio to support connecting electric networks across surfaces, so I can get Factorissimo to work within the optimized case. Would such a cross-surface connection feature mess with optimization too?

[Rseding91]

It's working correctly. Electric networks are designed for their primary use-case: one large network. Multiple tiny networks will perform much worse than the one big network.

In that case I'd really like for Factorio to support connecting electric networks across surfaces, so I can get Factorissimo to work within the optimized case. Would such a cross-surface connection feature mess with optimization too?

Cross-surface entities/mechanics is something I've been thinking about for some time.

[Koub]

[Koub] Considering the above, I'm moving this to Ideas and suggestions.