TPS lag on servers

[oblique stag]

MAJOR Tps lag caused by VS. issue thats on github about "Collision box is too big!" in server console.

[dense crypt]

Collision box is too big is usually caused by another mod

That’s why it hasn’t been fixed

Because it’s not vs on its own (usually)

[oblique stag]

woah. thank you! any way of identifying this well?

[oblique stag]

interesting.

I have about 24 gigs of ram for my server, and having a bit of tps lag and that "collosion box is too big" message from VS.

[dense crypt]

The tps lag might be unrelated to the message

Are you using the vs with fixes?

(A special version that isn’t on modrinth/Curseforge yet)

The non-fixes version had a series bug that causes performance problems

[oblique stag]

yes!

[dense crypt]

Yes you’re using the fixes version?

[oblique stag]

I am

one of the ones released in here.

Could I downgrade to the standard curseforge version? Or would that just break my server lol.

[dense crypt]

The fixes version is better

The Curseforge one is the one with performance issues

[oblique stag]

Ah.

My server now has 24 gigs, hoping to not get as much tps lag

[dense crypt]

24 should get you reasonable performance with vs, though if you have like 500 mods or something it might still be laggy

(i wouldn’t expect much tps lag with 24 gigs)

The message could be contributing to the TPS

[oblique stag]

260 lol

it seems to be better, but all of my players havent joined yet.

and i usually have around 6-8

should I limit my players to how many VS objects they can have also?

[oblique stag]

yea i jumped from 16 to 24 and it seems to be better

[dense crypt]

Less ships should help performance yeah, but lag-per-ship isn’t too bad

[oblique stag]

Gotcha. Any mods you know of that people use with VS that cause tps lag? curious to pick your brain just to see if I have any in my pack.

[dense crypt]

Well I have a list

[oblique stag]

oh?

[dense crypt]

Here are some common incompatibilities as of 1 march 2025:

Can cause crashes:

Amendments?
Connector extras
Cosmos Heroes
Does it tick?
Eating Animation
Epic Fight / Weapons of Miracles
forgero
FancyMenu / DrippyLoadingScreen
Groovy mod loader
liquid burner mod
Let me despawn
Leawinds third person
Multiplayer server pause
Trajans tanks
Ready player fun?
Respawning animals
regions unexplored
Rubidium - use embeddium
Shoulder surfing
Sound physics remastered
TerraFirmaCraft
Timeless and classic - use tac-zero
Webdisplays

Can cause visual problems (invisible ships etc):

2032 world height
Acedium
newer than 2.0.0 connectify
immersive portals
Immersive Optimization - broken contraptions on ships
Leawinds third person - freeze game on eureka helm
No see no tick
Optifine (use embeddium, iris/oculus and simple zoom for alternatives)
Very many players

Other problems:

bens sharks - AABB errors
biome music sounds - no sounds on ships
plug-in / mod hybrid server
Smaller than default world border - can't interact with ships (only 1.16 maybe?)
Starlight (server-side) - too many physics frames
simple hats - lag?
does potato tick - broken physics
nostalgia tweaks - broken sounds
Deep Mob Learning: Refrabicated - broken rendering of ships
Vanilla server jar - unable to move
Paladin's furniture - ships crashing AND splitting on assembly

[oblique stag]

This i i sso awesome man. Appreciate it.

I actually have none of these

we use better combat lol

[dense crypt]

It’s just made from me writing down the names of mods that people report as the cause of their problem

So some have probably been fixed, some were false reports, but overall it helps as a first check list

[oblique stag]

yea my server went back to major tps lag.

once 7-8 people joined

[dense crypt]

Hmm might need a binary search?

What kind of tps are we talking

[oblique stag]

bad.

@dense crypt

[dense crypt]

TPs was 20?

[oblique stag]

yep

seems so

[dense crypt]

You realise 20 TPS is the max
TPS right

[oblique stag]

lmao i did not know that

[dense crypt]

But if your experiencing lag

It could be FPS

which doesn’t have a limit

(And is often more noticeable)

[oblique stag]

fps? its not that

fps is great

its the tps

takes 3-4 seconds to break a block lol

[dense crypt]

Hmm so tps lag that doesn’t show up on spark huh

Interesting

[oblique stag]

yea i mean, i can clip a video for you of it lol

[dense crypt]

Do you have any uh, multiplayer optimisation mods?

Very many players, that kind of thing

[oblique stag]

I do not actually.

[dense crypt]

Perhaps if you have one of them it’s conflicting with vs in some weird way?

[dense crypt]

Oh never mind then

(Very many players is incompatible btw :P)

[oblique stag]

I dont think so? I have some of the mods by this guy :

[dense crypt]

What mods are those?

[oblique stag]

this guy that does performance mods for servers

[dense crypt]

Hmm well, you could maybe try without them

Like as a group, that way if it’s fixed you know it’s one of them but if it isn’t you know there not the problem

[oblique stag]

yea. but this constant error just makes me feel like its VS.

we disassembled every single ship as well.

and its still having the issue, but I feel like its just the persistance

[dense crypt]

Well yeah it’s probably vs, but usually it’s VS and another mod not getting along

Unfortunately VS is… quite complicated, so tends to have issues with other mods more frequently than normal mods 😔

[oblique stag]

Right, and i'm having trouble figuring out what that might be. I've had this error with VS for a while, the past two week. but now that there is more then 1-3 ppl online I'm seeing the lag from it.

Like the "collison box" etc

[dense crypt]

Well but if the error happens with less people, but the lag doesn’t

It could mean the error and lag are seperate?

Both still issues, but unconnected? Idk

[oblique stag]

hm yea. It could but honestly it just seems to correlate. Like nothing changed between adding it

[dense crypt]

Well the error is also caused by vs

[oblique stag]

Would you mind taking a look at my pack?

[dense crypt]

But it might not be the same problem as the lag, as weird as that is

[oblique stag]

to see if any mods you identify as problem makers

[dense crypt]

Well if it’s not on my list I probably can’t notice it, but sure?

[oblique stag]

I've thought about that

[dense crypt]

Doesn’t really help the situation though, if it is that

We still need to fix the lag

[oblique stag]

Do you think it could be eureka? smth about the interaction?

R [VS2 Get Entities Mixin/]: java.lang.Exception: Collision box is too big! AABB[-2.8575728650000006E7, 113.21999058722254, 360.3351113945246] -> [2766.328248683363, 125.30000001192093, 1.2290064650000006E7] returning empty list! this might break things

having this error a lot too

you think the messages themselves

[dense crypt]

And this is with no ships?

[dense crypt]

Wha?

[oblique stag]

as in like, the message spam causing issues

like could that cause the lag?

a mod like this could help?

[dense crypt]

Thats completely different

This log message isn’t coming from a ticking block entity

[oblique stag]

So, chat gpt said something pretty interesting

[coral glade]

chat gpt is not reliable

[oblique stag]

shh'

[coral glade]

esp for this specific of an issue

[dense crypt]

That bits somewhat correct

[coral glade]

just sayin

ill go back to watching

[dense crypt]

But the bit about block entities isn’t

[oblique stag]

hm

[dense crypt]

What’s weird is it’s happening without any ships

Have you guys had ships in the past?

In this world

[oblique stag]

we did. one bugged out lol. Im dreading to think that one could be the issue

[coral glade]

lmao

[dense crypt]

Possibly

[coral glade]

its that

[dense crypt]

Well it’s a relatively easy fix

[oblique stag]

well. see we didnt really delete it

but its not there

[dense crypt]

First, run the command /vs delete @v just of make sure all ships are not active

Then, you need to get rid of the blocks it leaves behind (you can’t see them or find them in any way)

To do that, you need to look in your world file

[oblique stag]

done

[dense crypt]

Look for the region files

[oblique stag]

right. but how do i narrow down the region?

[dense crypt]

Are there any region files with very large numbers in their names

If it isn’t obvious, then they probably aren’t the ones

[oblique stag]

I'll look.

[dense crypt]

Make a world backup too btw

Just in case, this should be fine but better safe

[oblique stag]

If I remove the mods right, and then run the server without VS, Eureka, or anythign else, couldn't taht fix it?

then just re-add them once the servers running find?

[oblique stag]

why are the region files without big numbers the issue?

[dense crypt]

Nope

[dense crypt]

The region files with big numbers are the regions of the shipyard, basically a far away land where the blocks of assembled (and even deleted) ships are stored. You don’t want to delete the other region files, since thats probably the chunks you’ve built in etc

But if you delete the shipyard, it’ll get rid of whatever glitched out ship blocks are left

[dense crypt]

Removing VS won’t fix it though, because as soon as you readd VS it’ll use the shipyard again and the error will come back

[oblique stag]

found the big number ones

[oblique stag]

ah.

so I delete ALL of these?

[dense crypt]

Yeah there pretty easy to spot

[dense crypt]

only the big ones

[oblique stag]

and none of these will affect anything else?

[dense crypt]

But yeah

Nope

In fact most of the shipyard is actually just air blocks

[oblique stag]

gonan delete these and see what happens : )

Still havin the TPS issue @dense crypt

[dense crypt]

Yeesh

Uhh

What does a proper spark profile say?

Does it suggest any culprits?

[oblique stag]

how can i see

[dense crypt]

Look under the uh “mods” tab on the website link it gives you

(/spark profiler start and after a bit /spark profiler stop, then it’ll give a link)

[oblique stag]

so

i ended up removing VS and Eureka etc all together

and it seems like.

its not the issue?

12.04 04:28:40 [Server] Server thread/WARN Can't keep up! Is the server overloaded? Running 15701ms or 314 ticks behind

[oblique stag]

as you can see, the server is ticks behind for some reason

https://spark.lucko.me/YgjxN7e8AA