[solved]Massive lag since update to 1.10

Discussion in 'Performance Tweaking' started by Dominic_de_Vos, Jun 11, 2016.

  1. Hi

    I have a system which consists of bungeecord and several spigot instances running on the same machine
    (8 cores, 2,4 - 3 Ghz haswell dedicated, 24gb ram total). Since the update to 1.10 one server i noticed ( survival) starts to lag
    when it hits about 6 players. https://timings.aikar.co/v2/?id=bbd...0&start=1465661595&end=1465661900&section=all
    THere is an event "dotick" which takes ages on one world.
    Has anyone an idea why?

    Some more info: THe survivalserver runs on 5gb ram. and uses the
    performance recommendations here: https://www.spigotmc.org/threads/gu...remove-lag-fix-tps-improve-performance.21726/

    Edit more speficially it says with 7 players online that the cpu load is 80%
    I Know from 1.8 8 that the server had 5% load with 6 players online
     
  2. It appeared that dynmap was using up 100% cpu power from the server on all cores.
    Not sure why. /dynmap cancelrender (just incase that it was rendering) had no effect so I had deinstalled it.
    What you saw here is that dynmap took cpu power from the survivalwerver
     
  3. It happened for me too.
    Any ways to reduce cpu usage?