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Poor performance on Fabric 1.21.1 (Pre-generated world, worldborder active)
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Central Asian Shepherd Dog posted this in #questions
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Central Asian Shepherd DogOP
I've provided a mod list, could there be any major optimization mods I'm missing / mods that are known to be heavy on performance? The view distance is already rather low.
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Central Asian Shepherd DogOP
The main issue is low tps when there's more than 1 or 2 players, and it seems to get worse over time.w
Central Asian Shepherd DogOP
I'm running on the oracle free tier VM, with 4 vCpus, 24GB of RAM (running barely anything else) and more than enough disk space free for overhead
Bluetick Coonhound
!spark
Central Asian Shepherd DogOP
🤦‍♂️
Should've started with that, give me about 15 minutes
Central Asian Shepherd DogOP
I'll join and fly around a bit
Central Asian Shepherd DogOP
Server has started to respond slowly, chunks are barely loading
With normal movement speed it just about manages to load in the chunks in time to prevent going into unloaded chunks
Does this tell you anything useful?
Bluetick Coonhound
So you see oracle free doesn’t have the best cpu ever, and you have a lot of mods
Expect low performance
Central Asian Shepherd DogOP
Hm, fair enough
It ran very well on paper, guess I overestimated how well it would handle fabric
Would removing worldgen mods have any effect if the world has been pre-generated?
Bluetick Coonhound
No unless you are generating new chunks
Central Asian Shepherd DogOP
Would adding more ram help at all? I'm aware the CPU is the problem but it'd be nice if I could squeeze out a bit of extra performance
Bluetick Coonhound
Adding ram would hurt, not help
Gc cycles would be more intensive to run
Bluetick Coonhound
Oh also use aikars flags
And I’d set server xmx to 8gb, not 16
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