[MCPE-19964] Massive lag when worlds are over 500mb Created: 10/Feb/17  Updated: 04/Jul/17  Resolved: 24/Mar/17

Status: Resolved
Project: Minecraft (Bedrock codebase)
Component/s: None
Affects Version/s: 1.0.3, 1.0.4.11
Fix Version/s: None

Type: Bug
Reporter: Syed Ali
Resolution: Works As Intended Votes: 3
Labels: None

Issue Links:
Duplicate
is duplicated by MCPE-20380 Large MC Windows 10 world, near 100% CPU Resolved
is duplicated by MCPE-21166 Uno de los mundos no funciona bien. L... Resolved
Relates
relates to MCPE-21715 Chunks not loading Resolved
relates to MCPE-22132 Minecraft PE world freezes every 30 s... Resolved
relates to MCPE-19308 World chunk generation/rendering is s... Resolved
relates to MCPE-21135 Game became almost uncontrollable due... Resolved
Confirmation Status: Confirmed
Platform: Windows
CHK:

 Description   

When playing a world that reaches over 500mb there is massive lag experienced by the user. This is when graphical settings are on the lower end, and using a well-specced machine. This is most often triggered when travelling by boat, but happens when moving on foot too.

Suggestion that an advanced option be given to users that allows larger worlds to be held in RAM for those users with enough memory to spare.

The game doesn't seem to use the GPU properly either.

Comp specs
i5-7500
16gb RAM
Nvidia 1050ti G1 4GB
Samsung Pro SSD



 Comments   
Comment by Tom Snively [ 24/Mar/17 ]

Comment by PHO [ 24/Mar/17 ]

Working As Implemented.
This is how LevelDB works. Give it some time to defragment the database, and it will eventually stop lagging the game.

Comment by PHO [ 15/Mar/17 ]

Confirmed on 1.0.4.11 / iPad Pro. When my world bloated up to 420MB it started to lag quite badly, even without any resource packs or shaders.

  • FPS drops when new chunks are getting loaded from save data.
  • FPS drops more severely when you change something in the terrain (and thus causing chunk data to be overwritten).
  • Loading and saving the world sometimes takes more than a minute, and sometimes takes only a few seconds. And when the game takes minutes to close a world, the world file size usually decreases. So I guess this has something to do with LevelDB database compaction.
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