Random Lag Spikes?

[zenmender]

So i run a server with about 30-40 people on a time and we are having random lag spikes. We are run on a dedicated server with 8 gb of ram and neither the ram nor cpu is ever above 50%. We are also running craftbukkit ++.

tps average is around 17-18.

I Do have Buildcraft pipes ban and know for a fact its not a spill.

Does anyone know how to fix these lag spikes? Im at a loss at what could possibly be causing them.

- thanks in advance.

[Djinnii]

High network traffic bursts?

[zenmender]

Nah We are on a 1GBPS Dedicated connection and according to the graphs we have not had any problems in that department. We also host 2 other servers on the connection and those have been fine.

[xtremetom]

Check for:

• cobble gens
  
• masses of UU production lines
  
• bad chunks
  
• tightly packed + full iron+ chests
  
• lots of autocrafting
  
• items in pipes (not only an bc issue)
  
• mass redstone machines
  
• chunk load count
  
• mob count (AI is badly made)
  
• laggy plugins
  
• remove restone wireless mod
  

Easiest way is to back up your world and start a test server. Strip all plugins and slowly re-add and monitor cpu + ram. Takes time though.