Server Lagg - NetworkWriter selftime.

Discussion in 'Bukkit Help' started by fresser123, Apr 20, 2013.

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    fresser123

    Hello.

    I am experiencing some tps lagg om my server atm. (Yesterday i had tps-problem with jobs and too much writing to MySQL, so i disabled jobs.) In Java VisualVM, are these processes taking about 90% togehter. (Selftime) But this one doesnt really use any cpu-selftime:
    net.minecraft.server.v1_5_R2.NetworkWriterThread.run() (Taking 48% selftime (137340976 ms) and only 296 ms selftime on cpu.)
    This process is also taking much on selftime, but its using cpu. Not like the other thread:
    net.minecraft.v1_5_R2.org.bouncycastle.crypto.io.CipherInputSteam.a() (Taking 44,8% selftime (141968561 ms) and the same on cpu selftime.)

    Sorry if i explain it wrong, im not native english speaker. :)


    Facts about my setup:
    - Os: Ubuntu Server 12.04 (LTS)
    - Cpu: Intel Core i5 3570 @ 3.40 Ghz-
    - Memory: 2×8 GB Kingston Ram @ 1600 Mhz
    - Primary disk: Samsung SSD 840, 120 GB
    - Craftbukkit #2754
    Plugins:
    AntiInvisible
    Buycraft
    ChatHighlighter
    ChestShop
    CleanroomGenerator
    ClearLag
    CommandSigns
    CustomMessages
    Essentials
    EssentialsChat
    EssentialsSpawn
    Factions
    GAListener
    GriefPrevention
    GroupManager
    KBPL
    LogBlock
    LogBlockQuestioner
    Loot
    LWC
    mcMMO
    Multiverse-Core
    Multiverse-Inventories
    Multiverse-NetherPortals
    Multiverse-Portals
    NoCheatPlus
    OnlineUsers
    PlayerHeads
    PlotMe
    RemoteToolkitPlugin
    SimpleSpleef
    SpaceBukkit
    Vault
    Votifier
    WorldBorder
    WorldEdit
    WorldGuard
    (Pasted, please ask for version, because i dont have a list of them :))
    Java version: OpenJDK Runtime Environment (IcedTea7 2.3.7) (7u15-2.3.7-0ubuntu1~12.04)
    Bukkit.yml: http://pastebin.com/U0JqReHN

    Any help and or questions will be appreciated!

     
  2. Offline

    TheOnlyRealTGS

    So... what's the problem?
     
  3. Offline

    fresser123

    Ehm, as mentioned in the title...? "Server lagg" - The server laggs, even tho it isnt taking cpu, and i need help trying to troubleshoot. :)
     
  4. Offline

    fresser123

    Anyone?
     
  5. Offline

    UltiFix

    Um whats your servers internet speed?
     
  6. Offline

    fresser123

  7. Offline

    ShadowDog007

    Could you generate bukkit timings?

    How many mobs do you have on your server?
     
  8. Offline

    fresser123

    ShadowDog007
    Timings: http://pastebin.com/A6hQXDqv
    Tps was on 13 when i toke that one, with 9 online...
    I have about 7-8k entities at all on the server, but we have both factions and survival world.
    - I am estimating about its the disk there is too slow? - But i haven't got ram enough to test ramdisk, so ill try to set view-distance down to around 6. :)
    Oh, and worlds are fullrendered, so no problems by generating world.
     
  9. Offline

    ShadowDog007

    fresser123

    GriefPrevention, CustomMessages and OnlineUsers are all using a lot of CPU time when players log in/out

    You do have a lot of mobs, maybe have a look at getting MobManager?
     
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