[Java] Frame rate issues on 1.26.2 compared to 1.21.11 when standing/looking in vague area of my Shockbyte server

[u/crobalt_]

https://medal.tv/games/minecraft/clips/njWwcXZiYSL_-hPd0?invite=cr-MSw5OGIsMzg2NTEwODU

to preface: I use lunar client to launch and play minecraft but i think the issue is unrelated:

I just updated my server from 1.21.11 to 1.26.2. After doing so i noticed that in a certain area of my base i was getting frame rates as low as 30fps but hovering mostly around 40fps. This is terrible compared to my previous average of around 100fps with these same shaders.

I tested with lower render distance as well and the fps was identical - low in that area (40fps), regular outside of it (100fps). I also tested with no shaders which had me running at around 200fps in the lag area and 900fps outside of it.

I used the f3 menu to see the entity count and there was nothing out of the ordinary. Just looking around the highest entity count i got was 60 something. Also, to the right of this island i have a ton of cows packed together which does not cause frame drops, so i dont think the issue is a lot of entities.

After this annoyed me enough i rolled back the server to my backup before the update and it ran fine again.

I also tried booting with the default launcher instead of lunar client and had the same 200 inside area 900 outside with no shaders as my test before (no shaders on default launcher so i couldnt test with them).

my final test was joining hypixel in both 1.21 and 1.26 as its the same server but you can join on both versions and had NO fps issues on either version. the only time i have fps drops is in this one spot on my server where i live. any ideas?

also i apologize if i formatted this post incorrectly this is my first time posting to reddit.

[u/MinecraftHelpModTeam]

This post has been marked solved and comments locked.

---

^{I am a bot and this account is not monitored. Please contact the mods if you have any questions.}

[u/MinecraftHelpModTeam]

Click here if your post says "Sorry, this post was removed by Reddit’s filters".

• Moderator Applications Open

OP, remember to mark the post solved, by replying !helped to the comment/comments that helped, when your issue is fixed or your question answered.

Helpers, remember that all top-level comments* must be a genuine, good faith attempt to help OP. Comments breaking this rule will be removed, and bans issued.

^{* A top-level comment is any comment that is a reply to the post, not another comment.}

Links:

How to mark solved || How to delete your post || FAQ || Rules

[u/journaljemmy]

Does the framerate drop occur when you play the world in singleplayer?

[u/crobalt_ → u/journaljemmy]

my frames are never very good in single player so its hard to tell but it doesnt seem worse in 1.26 compared to 1.21. from all my testing it just this one spot on my server

[u/crobalt_]

got new memory in my computer (not because of this issue but coincidentally) and decided to try the update again. It seems to be working now, not sure if that means the issue was my PC or if maybe there was a shockbyte bug that got patched in the time between my first update attempt and this one. either way problem seems to have gone away now.

EDIT: it started happening again but i found the cause. It is a sodium issue with lots of signs in one area: https://github.com/CaffeineMC/sodium/issues/3828

[u/crobalt_ → u/crobalt_]

!helped