Minecraft Client experiencing extreme lag on server
Is it normal for a client’s RAM usage to max out the moment they start Minecraft, even on the initial splash screen before they’ve even entered a world?
I’ve got a Fabric server and a user is getting ~20 FPS when before they averaged ~100ish. They didn’t check their usage prior to noticing the issue so can’t confirm what it was like before. The server is largely the same, the main changes are that mods were updated to the newest versions (not a MC version change, just the mod versions) and a couple new mods were added. I’m having them remove mods one at a time to troubleshoot but have yet to hear back.
I personally booted up completely vanilla MC and allocated the same amount of RAM but it only used around ~3GB during startup and on the splash screen, maybe even less. But the moment I load up the Fabric version with the mods installed, startup takes all 8GB and stays that high even on the splash screen.
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Requested by Ferix#3781
@lightningferix do you use Magnum torches?
That mod has a memory leak issue in the latest version
In 1.19.2
Idk if the creator has made anything about that issue
I contacted with him and he confirmed that it had a memory leak
GitHub
[Bug]: magnum torch update makes my server to have a memory leak · ...
Mod Loader (Required) Fabric Minecraft Version (Required) 1.19.2 Mod Version (Required) 4.2.2 Notes (Required) Current behavior is that the latest version or magnun torch, for some reason, makes th...
He confirmed me on discord
Btw
Just checked your spark report, it seems you aren't using magnum torches
If client uses C2me and vmp, remove them
oh okay, I’ll try that!
are they known to have problems?
i think it might have helped a bit? i went from around 7-20 fps to being able to get to 40ish, but the moment i start moving or looking around it drops back down to like 10-20..
yes this is normal, this is how java works
whe you "allocate" ram to a java application. you are setting aside that amount ram, and that amount ram can only be used by java
so if u allocate 8gb of ram, then java will use that 8gb of ram
the problem turned out to be a conflict between ImmediatelyFast and REI on the client! thanks for the help everyone
!solved
post closed!
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Requested by Ferix#3781