Reporting again because of deleted 2 reports before.
Isusue doesnt hapen on 1.14.4.
Please take notice this is vanilla. Take a look = integrated server. World is made with vanila minecraft and used only in vanila minecraft.
https://youtu.be/ZABMmFLuDbA
UPDATE:
1. Added debug of area in video with lag and without lag.
The diference is in laggy blocks geting moved.
profile-results-2020-01-23_02.58.32.txt = laggy
profile-results-2020-01-23_03.07.33.txt = no lag
2. Lags when chorus is growing.
3. Lags when blocks geting broken.
Poor render/lighting engine performance making client lag.
Most likely lighting resets in whole chunk!
This isusue have something to do with skylight.
Here another video playing with it.
https://www.youtube.com/watch?v=q4ZkJIkclN0
Linked issues
Comments
tryashtar
migrated
It not only affects piston lighting, but lighting of all blocks.
MC-111870 is not same isusue, and iam mentioning one that started to happen since 1.15
All i know 1.7.2 1.7.10 1.8 1.11 1.12 1.12.2 1.14.4 didnt contain this.
This isusue cause huge game stuter and makes game unplayable.
migrated
This report is about poor performance of rendering.
isusue is extremely weird here another video playing with it.
https://www.youtube.com/watch?v=q4ZkJIkclN0
wobst.michael
I think what we see here is MC-178301.
Arisa Bot
Thank you for your report!
We're tracking this issue in MC-123584, so this ticket is being resolved and linked as a duplicate.
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Only issue I saw in this video was MC-111870. Does that seem right?