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  1. Minecraft: Java Edition
  2. MC-117914

Entities crossing dimensions through nether portal causes tremendous lag

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    • Icon: Bug Bug
    • Resolution: Fixed
    • 19w36a
    • Minecraft 1.11.2, Minecraft 1.12 Pre-Release 5, Minecraft 1.12.1, Minecraft 1.13.1, Minecraft 1.13.2, Minecraft 18w45a, Minecraft 18w47a, Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w02a, Minecraft 19w03a, Minecraft 1.14 Pre-Release 2, Minecraft 1.14 Pre-Release 3, Minecraft 1.14 Pre-Release 4, Minecraft 1.14 Pre-Release 5, Minecraft 1.14, Minecraft 1.14.1 Pre-Release 1, Minecraft 1.14.1 Pre-Release 2, Minecraft 1.14.1, Minecraft 1.14.2 Pre-Release 3, Minecraft 1.14.2, Minecraft 1.14.3, 1.14.4
    • Confirmed
    • Chunk loading, Performance
    • Very Important

      The bug

      Every time somebody goes through a nether portal or an entity is sent to another dimension the whole server freezes for 1-2 seconds. The search algorithm for portals seems to be really inefficient.

      How to reproduce

      Video demonstrating the issue: https://gfycat.com/FriendlyInfiniteGreyhounddog

        1. image-2019-07-31-07-46-05-479.png
          image-2019-07-31-07-46-05-479.png
          1.25 MB
        2. profile-results-2019-04-15_12.32.39.txt
          10 kB

            boq [Mojang] Bartosz Bok
            ilmango ilmango
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              Created:
              Updated:
              Resolved:
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