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MC-296921

A large number of happy ghasts causes performance issues

Spawning a large number of Happy Ghasts causes performance issues.

Steps to Reproduce:

  1. Launch Minecraft and enter a Creative world (Nether or Overworld).

  2. Obtain the Happy Ghast spawn egg.

  3. Spawn 30–50 Happy Ghasts in a confined area.

  4. Observe performance (FPS and tick rate).

Observed Result:

  • FPS drops significantly.

  • Game may freeze or stutter.

  • Server TPS may drop (if in multiplayer or with local server).

Expected Result:

Spawning passive mobs like Happy Ghasts should not cause major performance degradation.

System Specs:

  • Minecraft Version: (25w16a)

  • Java Version: (Java 17)

  • OS: (Windows 11 Home 64-bit)

  • CPU: AMD Ryzen 5 5600X

  • GPU: (NVIDIA RTX 3060 Ti)

  • RAM: 16 GB

  • Allocated RAM for Minecraft: 8 GB

Comments 3

Any entity that Minecraft has to load causes performance issues. Since you are spawning so many, then Minecraft has to go ahead and render every single one.

Can confirm in 1.21.6 Pre-Release 3

Thank you for your report!
After consideration, the issue is being closed as Won't Fix.

Please note that this is not the same as Working as Intended, as this bug report correctly describes behavior in the game that might not be the intended or desirable behavior, but it will not be fixed right now. Sometimes, this is because the issue reported is minor and/or impossible to change without large architectural changes to the code base.

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Jolmon

(Unassigned)

1418860

Plausible

Expansion A

Important

Performance

25w16a

Retrieved