Heavy lag (Terralith issue?)

Hello, I started a fabric server some days ago on a google cloud server (16 gigs of ram, AMD EPYC 7B12) and the server has a really high MSPT and also dropping to 15-9 tps constantly and rarely being stable at 18-20 tps. We don't have any heavy mods except Terralith, Dungeons and Taverns and Tectonic, the rest are just performance mods or mods like voicechat. For the server we just use openjdk 21 and aikars flags with 12 gigs of ram assigned to it. Hare are some spark profiles of the server: https://spark.lucko.me/M1JkTaw8Ao and https://spark.lucko.me/d584VAbkMe
spark
spark is a performance profiler for Minecraft clients, servers, and proxies.
spark
spark is a performance profiler for Minecraft clients, servers, and proxies.
14 Replies
ticua
ticuaOP3w ago
If you need any more information feel free to ask ! Also the server is running Ubuntu 25.04, but that prob doesn't matter
Tamz
Tamz3w ago
Ubuntu 25? since when was that a thing anyways !offline
ticua
ticuaOP3w ago
it's not the LTS version tho
Snow Kit
Snow Kit3w ago
Modrinth
LazyDFU - Minecraft Mod
Makes the game boot faster by deferring non-essential initialization
ticua
ticuaOP3w ago
I don't manage the google cloud account I just configure the server
Tamz
Tamz3w ago
hm yeah it is a real thing
Snow Kit
Snow Kit3w ago
april 2025 that's what 25.04 stands for
Tamz
Tamz3w ago
ye just checking rn neat
ticua
ticuaOP3w ago
doesn't appear to exist for 1.21.5
Snow Kit
Snow Kit3w ago
yeah, all your lag is just from converting chunks to newer formats so it'll eventually go away
ticua
ticuaOP3w ago
I hope so btw should I use c2me? cuz when I had it, the spark profiler said that it used like 40-50% of server time with a thread locked
Snow Kit
Snow Kit3w ago
it might help? not sure tbh
ticua
ticuaOP3w ago
the server is around 18 ticks now I could prob lower the simulation distance and call it a day

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