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  1. Minecraft: Java Edition
  2. MC-53584

Extreme lag in custom worlds - "Something's taking too long!"

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • None
    • Minecraft 14w17a, Minecraft 14w18a, Minecraft 14w19a
    • None
    • Windows 8.1, Java 8
    • Unconfirmed

      When creating a custom world with the preset attached in pastebin link, I get extreme lag (not render lag, like fps, but block/entity lag). When beginning debug profiling, I get errors saying "Something's taking too long!
      [10:49:32] [Server thread/WARN]: Something's taking too long! 'root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.root.levels.Shelf Survival.tick.tickBlocks.tickChunk' took aprox 105.244341 ms"

      This spams console and makes the game unplayable.

      Pastebin link (Preset and error report)

      http://pastebin.com/9tbyEQ2L

      Debug log attached.

            Unassigned Unassigned
            ajthemacboy AJ Ruckman
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              Created:
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