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To do that find the .sh named start.sh
Open it up with a program that can edit such as vi, apple text edit, Xcode, wordpad?, my favorite sublime text.
And paste all of your JVM arguments in there. Then save or if using vi type ESC ;wq
I your getting lag with that CPU and only 30 on you have some problems in game like way too many items or devices of some kind killing the tps, opis can help you find it and remove them.
Your processor is the problem here, get a ugrade or shut over every application execpt the server and don't run your client and the server at the same time.
Also your specs are your PC spefications, we need more then just ram, ram doesn't affect lag or those messages at all.
What e3 do you have? GHZ is not everything if your host didn't tell you it's probably because it's not that great of a model, you could get a CPU upgrade and that will significantly reduce lag. Or setup a bungee server to spread the load across several cores.
Yes, I'd reccomend the 1240, 1270, 1280, i7 4970, i7 4770, and really any modern processor with a decent single threaded benchmark. Check on CPUbenchmark.net
Not sure what plugins you have or not if you have mcpc, all I know is the specs and that it lags so we can't help much, execpt that CPU is very underpowered and I'm doubtful it can support 5 people on unleashed without lag.
There isn't really any way to tick the world on multiple threads without TT.
You could setup a bungee server and spread the load out among several servers though.
What kind of minecraft control panel do you have then, it is messing with you server.log, everytime the server starts it logs to the server.log.
Also for a modpack that CPU is not very good at all for minecraft as minecraft is single threaded and it could be your problem.
However with no logs...
Pease give the exact ram amount, as I said minecraft only uses set amounts such as 1Gb or 3GB, if you host says 1-128GB that is incorrect.
What is your CPU model, and are you using a VPS or shared hosting?
Please use pastebin for your logs, I doubt anybody here will download a .zip and if you...
What are your server specs? How much ram do you have, minecraft uses a set amount not any random amount up to 128GB.
What are you using to check the TPS, provide your server.log and forgelogs.
What dw20 version do you have and what cauldron version?
You don't have enough ram allocated to startup.
Depending on what modpack you have the ram amount you need is different but 247MB is not enough for any FTB pack
Add this to your startup script to increase ram,
-Xms1024 -Xmx2048 -XX:Permsize256m