[kovarex] [0.16.30] Splitter behaving differently

[Neemys]

Hello

Haven't play factorio for months, I saw some weird behavior from my train unloading balancer.

I use 12 belts that get merged two by two to form 6 lane that get balanced into only 3. Because 3 is slower than 6, the 6 input belt are use only half so back up. That way balancer have 6 full belt coming in. However the output have gap.

The same balancer fed with 6 full belt using loader don't create gap.

Observation : To resume, two same balancer, 6 input, 3 output. 1 fed by inserter, the other using loader. The inserter fed one have gap in output belts, the other don't.

Expected behavior : Same behavior in two cases (gap or no gap)

Having show-transport-line-gap debug checked to see gaps.

bug_balancer.jpg (251.37 KiB) Viewed 2770 times

Red and yellow belts don't show that behavior (having gap).

Here a save with both setup for testing that reproduce the issue.

_bug_inserter_gap.zip

(2.55 MiB) Downloaded 79 times

[kovarex]

The problem is, that generally when there is a loop in the belt system, it can't properly set order of updates in a way, that output updates before input, so full compression is not possible.
In your example, when I removed the loop and related splitters, it worked good again.

[Neemys]

Yeah, but removing the loop make input taken unevenly, I see it's game behavior. I will try to do that another way.

One question though, why there is no problem with the one fed from loader as it's the same balancer ?

Thanks for the answer.

[impetus maximus]

Yeah, but removing the loop make input taken unevenly, I see it's game behavior. I will try to do that another way.

use an arithmetic combinator to control that.

balanced_unloading.png (173.21 KiB) Viewed 2674 times

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[Neemys]

Yeah, but removing the loop make input taken unevenly, I see it's game behavior. I will try to do that another way.

use an arithmetic combinator to control that.

balanced_unloading.png

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I'm not even sure my computer will be able to support the base I'm making, I will avoid putting any combinator unless I have no other choice, thanks anyway (yes I know I should avoid belt for ups, but I can't play with bots...)

[TruePikachu]

I'm fairly sure combinators and the circuit network are computationally cheap compared to the belt update cycle.