I have a pretty heavily modded server that I run from my computer. I have 32gb of ram on my computer and allocate around 8-10 to the server. Since the start of the server (and on previous servers run from my computer including vanilla), I have recieved this multiple times in the chat: Can't Keep Up! Did the system time change or is the server overloaded? The players have now started rubberbanding and it is extremely laggy. There were some corrupted chunks but I deleted those regions in the world folder and it seemed to fix itself. Here is the most recent log where it stopped about a minute after loading without me stopping it but didn't produce a crash report.
I just tried allocating 16gb of ram. Although it isn't as laggy as before and hasnt crashed yet, it still lags a lot and there is still a ton of rubberbanding. The console is also still being spammed with that biomesoplenty message. Also depending on the time of day I can get anywhere from 400mbps-900mbps
looks like your startup script is not fully configured (JVM Flags: 3 total; -Xms16384m -Xmx16384m -XX:PermSize=256m) set your min ram to 1gb so your server does not blot too much straight away and make sure your java arguments match your server and hardware