Is the performance of a hub better than the performance of a single server?

Hello everybody.
I have a large server with 200+ players at one time.
It has 37 plugins, 20+ worlds and many different "games" including factions and creative.
I experience performance problems and my server starts lagging out in around 1.5 hours with 220 players on it at the same time.

The question is, if I make a hub on my dedicated machine with 32 GB ram (around 2-5 servers) will the total performance be better?
I couldn't find any intelligent recommendations regarding this anywhere. I would appreciate a lot if someone who is familiar with this from either experience or theoretical point of view could help.

Thanks,
Shicking

 

CPU(s) specs?

 

Depends on the plugins too.

 

My dedicated server specs:
32 GB ram
64 G SSD disk and a 500 GB HHD disk
E3-1270 CPU, 4 cores, 8 threads

My plugins + world list:
http://pastebin.com/zapPSJ0E

 

With a hub server, you will use more CPU/RAM in total than without.

But because each server runs in its own thread, you can make much better use of your CPU. And provide multiple servers without lag.

If you don't want to switch to a hub server, you need to reduce some sources of lag. You can take care of items alright with ClearLag. For Mobs, you might want to have a look at MobManager

Another thing that can help a bit is reducing the rate at which plants are checked to see if they will grow. Pretty sure you can do this with spigot. Which you should be using if your not already.

 

How can you change the rate at which plants grow using spigot? I tried both bukkit and spigot, and they both seem to have their own problems.

 

Shicking
world:
growth-chunks-per-tick: 1000

Reduce that value.

Could you generate timings for your server while it is getting TPS issues?

 

Huge lag for around 10 seconds, here are the timings:

http://aikar.co/timings.php?url=5686443