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General Discussion

Feel free to talk about anything and everything related to Minecraft Forge in this board.

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Announcements

Minecraft: Hunger Games w/Cad! Game 234 - THE BLUFF!

The 234th episode of Hunger Games on the road to 1000 episodes! Lets see if we can hit that goal! https://www.youtube.com/watch?v=4tQIgj8pBmM

By cadbane86140 · 10 hours ago10 hr
Trying to make FTB skies II: Aero work on a server

the server works fine but two dependancies are required, modopedia and guideme. When added individually it works fine and just says that the other is needed by x mod. But when both are added it fails and doesnt make a crash report.
i can add any additional details

1.21.1 neoforge

appears to be a mixin issue?

By Luca....... · 16 hours ago16 hr
Best Minecraft hosts in 2026 (from someone who's been running servers since 2012)

Half the "my server is lagging" posts here would be solved in five minutes with a profile.
Install spark. Then:

/spark tps — MSPT is the number that matters, not TPS. Budget is 50ms a tick. Sitting at 60+ means everyone can feel it.

/spark profiler start, let it run while it's bad, /spark profiler stop. You get a link.
/spark heapsummary — tells you if it's actually a memory problem or not.
Nine times out of ten it's not RAM. It's a few thousand loose items from a broken sorting system, or one guy's Create contraption, or view-distance sitting at 16 because nobody changed it. Drop that to 10 first, it's free.

Over-allocating is a real thing too. Give a 10 GB pack 24 GB and the GC just has more to walk through when it finally fires. Longer freezes instead of small hiccups, which feels worse.
Rough numbers I actually use: light plugins 3-4 GB, mid-size pack 6-8, ATM10 tier 10-12 and 16 if you can. Java 21, G1GC, Aikar's flags as a starting point.

Also worth profiling while things are fine so you've got something to compare against later. Nobody does this including me until it's too late.

What's the dumbest thing that turned out to be eating your tick? Mine was a Create contraption running against a wall doing nothing for six weeks.

By setria · Thursday at 03:43 PM1 day
How to change a players selected hotbar slot

is this possible with commands?

By timchacha · Thursday at 11:11 AM2 days
Friend times out when connecting to LAN world

Maybe starcatcher

By TileEntity · Wednesday at 08:46 PM2 days

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