Too Many Hoppers
Storage and sorting systems built from large hopper arrays drag down TPS. Hoppers check their contents constantly, so hundreds of them together create a steady, heavy tick load.
What does this error mean?
Each hopper polls the inventory above it and tries to move items every few ticks. Multiply that by hundreds of hoppers in a sorting system and the cumulative cost becomes a real performance drain even when idle.
Hopper tick overload
Most Common Causes
- Huge automatic sorting systems.
- Long hopper chains under storage halls.
- Hopper-based item elevators.
- Hopper clocks used as timers.
- Many small farms each ending in hoppers.
How To Diagnose
- Use spark to see hopper/tile-entity tick cost.
- Count hoppers in storage and sorting areas.
- Toggle suspect systems off and watch TPS.
- Look for hopper clocks running constantly.
Recommended Fixes
- Use water streams
Move items with water and a single collection hopper instead of long hopper chains. - Add a storage mod/plugin
Replace bulk hoppers with a storage system that does not tick per block. - Reduce hopper count
Consolidate sorters and remove redundant hopper lines. - Tune hopper rates
On Paper, adjust hopper transfer/check intervals to lighten the load.
Frequently Asked Questions
They still poll for items every few ticks. Many of them add up even with nothing moving.
Yes, one collection hopper plus water replaces dozens of constantly-ticking hoppers.
Paper exposes hopper timing settings that reduce their per-tick cost.