Strange Lag with Minecraft FTB server

laserball31

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Feb 27, 2014
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I've had a bit of a problem with our home-hosted Minecraft FTB server... after having about 11 players, the TPS starts going down to 15 and lower. I really don't know what the problem could be, as all the worlds are pre-rendered to 15000 blocks from spawn.

Specs, if it helps...

CPU: Intel Xeon E5-1620 v2 @ 3.7-3.9 GHZ
RAM: 32GB DDR3 RAM
SSD: Samsung 128GB EVO
Upload: 30 mb/s
Down: 75 mb/s

Obviously, there's no reason why this should be happening, but it's always around 10-11 players. We've just recently had a world reset, so no one is that far into the game. Any ideas?
 
Interesting. What mods are you using? Are you perhaps using Underground Biomes? If so, create a test world, give everyone the ability to spawn things in, have them set up some form of base like the one they have (or alternatively port there base in) bu get rid of underground biomes. That mod is the laggiest thing in existence.

Otherwise theres various TPS diagnostic mods out there. Use one of those and see what lags the most.