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  1. Minecraft: Java Edition
  2. MC-190717

Trader Llama pathfinding can cause significant ticktimes

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    • Icon: Bug Bug
    • Resolution: Awaiting Response
    • None
    • 1.15.2
    • None
    • GEforceGT 650M/PCIe/SSE2
      8GB ram ( 4 GB allowed to minecraft)
      CPu: 8x core I7 intel
      Java : 1.8.0 64b
    • Unconfirmed
    • Performance

      Hello,

      I have noticed that in some chunks of my game , the game "increase drastically" the ms ticks

      the value increase as soon as a switch from a normal chunk to a problematic one. ( always > 140 when there is an issue and always < 50 when there is not)

      As far as i understand, This high value generate several bugs in the impacted chunks : minecart extremely slow and laggy, mining bug ( the mined block reapear for 1 or 2 sec ) , red stone timers are not working etc.. ). general behavior is that the chunks seems very laggy. 

      some chunks are so impacted ( >200 ) that the game is unplayable .

      I saw that there issue have been reported for 1.14 + ( MC-138550) but not for 1.15.2 that is why i post this one.

       

      Edit : map loaded in 1.16 RC1: 

      reduced in intensity : from  >200 => to 70/80 in the impacted chunks

      i have done a new debug report.

      game is playable , however difference is still clearly visible. btw the chunks impacted and those that aren't. ( ms tick value is *2 ) 

      Nb : I checked as i was thinking that it might affects the "most transformed" chunks vs the untouched , but seems not related ( some impacted chunks were not modifed since generation at all) 

       

        1. 2020-06-26_21.13.56.png
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        5. 2020-06-26_21.14.37.png
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        6. 2020-06-26_21.14.43.png
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        7. bugged chunk 1.png
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        8. bugged chunk 2.png
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        9. lama 1.16.1 a.png
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        10. lama 1.16.1 b.png
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        11. lama 1.16.1 c.png
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        12. lama 1.16.1 d.png
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        13. mining lag.png
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        14. normal chunk 1.png
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        15. normal chunk 2.png
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        16. profile-results-2020-06-20_17.34.46 debug launched in normal chunk.txt
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        17. profile-results-2020-06-20_17.37.08 debug launched in bugged chunk.txt
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        18. profile-results-2020-06-20_18.05.50 1.16 RC1.txt
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        19. profile-results-2020-06-26_21.40.03.txt
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              Created:
              Updated:
              Resolved: