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  1. Minecraft: Java Edition
  2. MC-160931

1.15 chunk rendering is slow and laggy

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: 19w37a, 19w38b, 19w38a, 19w39a, 19w40a, 19w41a, 19w42a, 19w44a
    • Fix Version/s: 1.15 Pre-release 1
    • Labels:
      None
    • Confirmation Status:
      Confirmed
    • Category:
      Performance
    • Mojang Priority:
      Important

      Description

      When loading chunks in 19w37a, chunk rendering is much slower than it was in 1.14.4. When you go into an unloaded chunk, you also receive a lag spike that lags out both the client and the server, making it really hard to explore the world via elytra due to framerate and performance drops. To reproduce, fly around on elytra and notice that chunk loading is slower and often causes lag spikes in 19w37a when it doesn't in 1.14.4. My debug report was made when I was flying during a lag spike in 19w37a.

        Attachments

        1. profile-results-2019-09-11_19.23.26.txt
          75 kB
          [Helper] gaspoweredpick
        2. profile-results-2019-09-11_19.25.34.txt
          65 kB
          [Helper] gaspoweredpick
        3. profile-results-2019-09-11_19.32.02.txt
          47 kB
          [Helper] gaspoweredpick
        4. profile-results-2019-09-11_19.32.52.txt
          52 kB
          [Helper] gaspoweredpick
        5. profile-results-2019-09-11_19.33.44.txt
          51 kB
          [Helper] gaspoweredpick
        6. profile-results-2019-09-11_19.36.39.txt
          50 kB
          [Helper] gaspoweredpick
        7. profile-results-2019-09-11_19.38.32.txt
          56 kB
          [Helper] gaspoweredpick
        8. profile-results-2019-09-11_19.39.14.txt
          49 kB
          [Helper] gaspoweredpick
        9. profile-results-2019-09-11_20.07.02.txt
          38 kB
          [Helper] gaspoweredpick
        10. profile-results-2019-11-19_00.11.57.txt
          72 kB
          Greg A. Woodruff
        11. profile-results-2019-11-19_00.11.57.txt
          72 kB
          Greg A. Woodruff
        12. profile-results-2019-11-19_00.11.57.txt
          72 kB
          Greg A. Woodruff

          Activity

            People

            Assignee:
            slicedlime [Mojang] slicedlime
            Reporter:
            gaspoweredpick [Helper] gaspoweredpick
            Votes:
            16 Vote for this issue
            Watchers:
            9 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:
              CHK: