Do activated hoppers produce less lag than unactivated hoppers?

Question

I know that putting blocks with containers above hoppers can reduce the calculations that the game needs to run, improving the performance of the game.

Does activating hoppers with a Redstone signal (thus locking them) achieve a simillar effect?

creepern1111 · Answer

Yes I think so...

I watched a video where they experimented with this and if I remember correctly the answer is yes. If a hopper is activated (powered by Redstone) it doesn't need to check the blocks around it, if it has an input or output.

Fabian Röling · Answer

Yes, they do. Here is the performance graph after I put a redstone block under each hopper using /fill:

The bottom right graph shows how many milliseconds each server tick takes, with longer lines being more time. You can clearly see the drop when I deactivated all 32761 hoppers.

In this test all hoppers were facing down, I deactivated them with redstone blocks below and I used a render distance of 32.

Do activated hoppers produce less lag than unactivated hoppers?

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