Admincraft•2y ago

Reduce ram usage? or at least not be at 100%

Hi, I rent/bought a server from heavynode, the specs are 5 threads of an AMD 7950x & 20gb ddr5 memory, and it's using Pterodactyl Control Panel. render distance is 11 and simulation distance is 6 The memory usage starts at about 30% when the server boots, then steadily climbs up to 100% over the next few hours before the daily restart sets it back to 30% again. The server is running fabric 1.20 I have anywhere from 5-25 people online at a time current installed mods: Dynmap Cloth-config Simple voice chat Fabric api lithium krypton ferritecore memoryleakfix simple_end_disable vanish MCDiscordChat Ledger Fabric Language Kotlin the server startup command/s are:

java -Xms128M -Xmx20480M -Dterminal.jline=false -Dterminal.ansi=true -jar fabric-server-launch.jar

java -Xms128M -Xmx20480M -Dterminal.jline=false -Dterminal.ansi=true -jar fabric-server-launch.jar

(This is how it came, I have not edited this) it's running on java 18 (NOT Java 18 OpenJ9) (I have the option to change this to 8/11/16/17) Sometimes the server will just crash out of nowhere, usually its due to "out of memory" but sometimes i can't find a crash reason, and it also does not create crash reports, i am unsure why my settings for dynmap are vlowres, i have deleted the cave and surface map for the overworld so it has to render less, i also pause it at the beginning of server start so it doesnt render anything at all, I have not touched any configs for lithium or ferritecore. It's possible that i have too many "optimization" mods? or maybe i need to add more JVM arguments, I really do not know. any help really appreciated. ask any and all questions and i will do my best to help provide what you need

43 Replies

Admincraft Meta•2y ago

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Requested by grimcyanide#0

applesauce•2y ago

iirc memoryleakfix causes a memory leak

GrimOP•2y ago

thats ironic

applesauce•2y ago

also you should install starlight free performance with no downside

GrimOP•2y ago

yes, ive been meaning to, always forget

ProGamingDk•2y ago

dont give mc 20 gb honestly give it max1 6 max 16* and leave some for overhead

GiannisD•2y ago

I suggest using up to xnx17408M cause you also have an operation system and a panel to run too not only Minecraft

GrimOP•2y ago

So im paying for 20 but should only use 16?

GiannisD•2y ago

at this point it could crash the hole system for better stability also there's an os under the hood not only Minecraft

ProGamingDk•2y ago

hes not using a vps

GiannisD•2y ago

the os and pterodactyl also need ram

GrimOP•2y ago

👍🏻

ProGamingDk•2y ago

heavynode is a mc host

GiannisD•2y ago

still the same it's a vm

ProGamingDk•2y ago

yes. but ur explanation of why is wrong u want overhead for jvm not panel or os

GiannisD•2y ago

if the machines ram is 20gb there are other processes that need ram that's why I said give it 17gbs cause most Linux os use at idle around 300-2000mbs of ram

ProGamingDk•2y ago

but ur not dealing with the machine its just the jvm

GrimOP•2y ago

ok, so ive got it set to

java -Xms128M -Xmx16384M -Dterminal.jline=false -Dterminal.ansi=true -jar {{SERVER_JARFILE}}

java -Xms128M -Xmx16384M -Dterminal.jline=false -Dterminal.ansi=true -jar {{SERVER_JARFILE}}

now, that look good?

ProGamingDk•2y ago

looks fine' pterodactyl uses alpine instances

ProGamingDk•2y ago

ProGamingDk•2y ago

(alpine)

GiannisD•2y ago

didn't know what os it was running on

snowznz.bak•2y ago

can you use aikar flags?

snowznz.bak•2y ago

https://flags.sh/

flags.sh

A simple script generator to start your Minecraft servers with optimal flags.

GrimOP•2y ago

im really not sure.

GrimOP•2y ago

all i get is this

snowznz.bak•2y ago

so you have a 20gb server?

GrimOP•2y ago

yes

snowznz.bak•2y ago

and how much ram does it usually use

GrimOP•2y ago

100% after a few hours, it only goes up, never down. it starts at 30% on server launch

snowznz.bak•2y ago

how many players?

GrimOP•2y ago

usually 5-25. depends on time of day

snowznz.bak•2y ago

fuck use these flags

java -Xms16G -Xmx16G --add-modules=jdk.incubator.vector -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -XX:G1NewSizePercent=40 -XX:G1MaxNewSizePercent=50 -XX:G1HeapRegionSize=16M -XX:G1ReservePercent=15 -jar {{SERVER_JARFILE}} --nogui

java -Xms16G -Xmx16G --add-modules=jdk.incubator.vector -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -XX:G1NewSizePercent=40 -XX:G1MaxNewSizePercent=50 -XX:G1HeapRegionSize=16M -XX:G1ReservePercent=15 -jar {{SERVER_JARFILE}} --nogui

also use java 17 unless any of the mods require java 18

GrimOP•2y ago

will try both these, thanks

snowznz.bak•2y ago

also download this plugin and run the profiler to see what is using the most resources https://spark.lucko.me/

spark

spark is a performance profiler for Minecraft clients, servers, and proxies.

Admincraft Meta•2y ago

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Requested by eqzy#0

GrimOP•2y ago