Walking into a different chunk causes lag
The bug
When walking into a new chunk, Minecraft lags for a single frame.
Video: https://streamable.com/z8c88
How to reproduce
- Create a new empty world
- F3 + G to view chunk boundaries
- Walk into a new chunk
→
Notice brief fps drops
Linked Issues
is duplicated by12
MC-137540Stutter LagDuplicateMC-137665Significant lagspices while moving between chunksDuplicateMC-137674Small freezes during the generation of new chunksDuplicateMC-137749Lag spike when crossing between chunks.DuplicateMC-137772intense lag while trying to do anythingDuplicateMC-137788Extremely LaggyDuplicateMC-137816Enormous, constant lag spikesDuplicateMC-137981Lag when crossing any chunk borderDuplicateMC-137992Very big and consistant lag spikesDuplicateMC-138023Stuttering when walking through chunk borders.DuplicateMC-138042Freeze when player changes chunkDuplicateMC-138147When traveling through different chunks, there is still a lag spike, and you can see that when doing Alt+F3 and walking/flying through a different chunk.Duplicate
Created Issue:
Walking into a different chunk causes lag
Environment
When walking into a new chunk, Minecraft lags for a single frame.
Steps to reproduce
- Create a new empty world
- Walk into a new chunk
- Notice the lag
![[Bot] Arisa](../../../data/assets/gravatar/mustek2.png){kind=small}
When walking into a new chunk, Minecraft lags for a single frame.
Steps to reproduce
- Create a new empty world
- Walk into a new chunk
- Notice the lag
Video of the Bug: https://streamable.com/z8c88
When walking into a new chunk, Minecraft lags for a single frame.
Steps to reproduce
- Create a new empty world
- Walk into a new chunk
- Notice the lag
Video of the Bug: https://streamable.com/z8c88
When walking into a new chunk, Minecraft lags for a single frame.
Steps to reproduce
- Create a new empty world
- Walk into a new chunk
- Notice the lag
Video of the Bug: https://streamable.com/z8c88
Java 8, Windows 10
When walking into a new chunk, Minecraft lags for a single frame.
Steps to reproduce
- Create a new empty world
- Walk into a new chunk
- Notice the lag
Video of the Bug: https://streamable.com/z8c88
![[Mod] tryashtar](../../../data/avatars/users/41963.png){kind=small}
When walking into a new chunk, Minecraft lags for a single frame.
Steps to reproduce
- Create a new empty world
Walk into a new chunkNotice the lagVideo of the Bug: https://streamable.com/z8c88
When walking into a new chunk, Minecraft lags for a single frame.
Steps to reproduce
- Create a new empty world
- F3 + G to view chunk boundaries
- Walk into a new chunk
- Notice brief lagspike
Video of the Bug: https://streamable.com/z8c88
is duplicated by
When walking into a new chunk, Minecraft lags for a single frame.
Steps to reproduce
- Create a new empty world
- F3 + G to view chunk boundaries
- Walk into a new chunk
- Notice brief lagspike
Videoof the Bug:https://streamable.com/z8c88The bug
When walking into a new chunk, Minecraft lags for a single frame.
Video: https://streamable.com/z8c88How to reproduce
- Create a new empty world
- F3 + G to view chunk boundaries
- Walk into a new chunk
→
Java 8, Windows 10
The bug
When walking into a new chunk, Minecraft lags for a single frame.
Video: https://streamable.com/z8c88How to reproduce
- Create a new empty world
- F3 + G to view chunk boundaries
- Walk into a new chunk
→
![[Mod] Asteraoth](../../../data/avatars/users/92886.png){kind=small}
is duplicated by
![[Mod] Neko](../../../data/avatars/users/92901.png){kind=small}
is duplicated by
is duplicated by
is duplicated by
is duplicated by
![[Mod] Les3awe](../../../data/avatars/users/79847.png){kind=small}
is duplicated by
![[Mojang] Georgii Gavrichev](../../../data/avatars/users/22428.png){kind=small}
[Mojang] Georgii Gavrichev
I've noticed the FPS stutter when simply turning to face in a different direction as well.
is duplicated by
is duplicated by
is duplicated by
is duplicated by
is duplicated by
MC-138235
is duplicated by
is duplicated by
Thank you for your report!
However, this issue is a Duplicate of MC-137537.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Thank you for your report!
However, this issue has been closed as a Duplicate of MC-137537.
It has been linked to this report. If you have additional information, please add it to the duplicated report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Likely MC-137537.
Likely MC-137537.
Thank you for your report!
However, this issue is a Duplicate of MC-137537.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Minecarts seem to be moving at the same speed as before. The lag is probably caused when the minecart moves from one chunk to another (MC-137537).
Thank you for your report!
However, this issue has been closed as a Duplicate of MC-137537.
It has been linked to this report. If you have additional information, please add it to the duplicated report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Can confirm placing/breaking blocks causes lag spikes. I removed the part about walking around causing lag; that is MC-137537.
Does MC-137537 describe your issue?
Thank you for your report!
However, this issue has been closed as a Duplicate of MC-137537.
It has been linked to this report. If you have additional information, please add it to the duplicated report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
It seems like this issue has come up before as MC-137537 (though, it looks far more severe there) which has been marked as resolved.
As illustrated by this vanilla video, when walking between chunks there is a lag spike. The debug pie chart include these spikes, but the impact is somewhat difficult to see in these video itself. Nevertheless, you can see, when crossing a chunk boundary there's a spike in "scheduled executables". This can be felt as a stutter.
I'm not sure if it's mainly noticeable because I'm playing on 144Hz monitors. You can't see it in the video, and I'm assuming that's because they've been recorded at either 30 or 60 FPS.
Just to add to this - I also tested this in 1.13.2 and it performs perfectly, there's no stutter at all.
Can confirm
Came here to report this. Can confirm this issue.
Confirming. I have not had a crash due to this issue, so no crash report to show? It's simply lag spikes when walking between chunks.
Similar here, use F3-G to confirm. Every time I cross from one chunk to another the game lags. It also depends on the chunk range. At 16 Chunks it's not quite as bad as say 28 chunks.
I can confirm
With F3 open, it looks like it's something to do with the "Server Light level" vs. "Client Light level". The "Server" line vanishes briefly when crossing the chunk as if the client is "wait-a-minute, let me talk with the server" even though I'm testing this in single player.
Can confirm, 18W43B. If I walk from one chunk to another, there's a very noticeable hesitation. If I walk back and forth between two chunks, there's the same hesitation each time I cross the chunk border.
Can confirm this on 18W43B in Single Player. Does not happen on my Snapshot Testing multiplayer server.
The pie profiler shows scheduledExecutables increasing at this time
I also noticed a very high number of mob on the map, as on the screenshot. But I don't now if it's a non-bug.
I also noticed this even while running a server on a 2nd PC, and also while just mining blocks in the same chunk, every single time you break a block, it stutters for a few seconds, I'm guessing its the new lighting engine, cause I see the same issue while just replacing the floor of a new house, every block I put down cause a slight freeze, I've tested this in the official 1.13.2 and I didn't see this problem at all.
Still an issue in 18w43c
I can confirm its still in 18w43c, I'm not surprised being one of the first released snapshot for this version, perhaps it was a little bit too early, I'm blaming the new lighting engine on this one, I see the same lag for each block I mine or I put down, so I suspect its the way the new lighting engine is calculating its way out.
Also can confirm, still happens on 18w43c. Is the stutter happening because the new chunk data is drawn all at once as soon as it's received by the client, and the chunks behind you that are despawning are being despawned all at the same time? If all of this is happening on the same tick, then maybe it should be spread across several ticks.
Can confirm this is still happening in 18w43c.
Edit: just to confirm that I agree with the person above me. The game tries to draw all the chunks at once as soon as I move to the next chunk, and I think that's part of the issue somehow.
Also can confirm in 18w43c. Reopening.
Seems to be fixed in 18w44a.
Seems to be fixed, I can confirm, but I see a little lag spike after chopping down a tree now, its not extreme, but I think its related to the leaves despawning mechanic, which is maybe a new bug report, I'll browse through the new ones tomorrow when I have more time, if its not there, I'll try to reproduce it again and report it.
I can also confirm that this is fixed. Wp devs
Before the fix, I had a lot of lag while walking between chunks. After the fix it's been a small inconsistent spike most times. My latency when crossing chunk boarders goes up to 100-120ms (again, not as bad as before the fix, but still noticeable). But for some reason, I only get the spike if I stay in the current chunk for a few seconds. Going back and forth between the boarder quickly doesn't give me any lag.
Is this another bug like
MC-132135or MC-123584?this 1.14 grid frame skip bug happened to me on the released version
is this fix ? i still have the bug on server on 1.16.1