My PC should be enough ?

Discussion in 'Bukkit Help' started by .deblob, Feb 2, 2011.

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  1. Offline

    .deblob

    Hi all !
    I ran a bukkit server for about 3 weeks. We ware always 3 people playing.
    Recently a fourth one joined. From now on things started to get weired ...
    I and at least one other guy has got an extreme lag. The others are ok.

    My System:

    - AMD Phenom II X6 1090T
    - 4GB RAM
    - Asus M4A87TD Evo
    - NVidia Geforce GTX 470

    Shouldn`t this be enough to run a server for 4 people ?

    Sorry for my bad English =)

    gr33tZ from Germany,
    .deblob
     
  2. Offline

    chernobyl360

  3. Offline

    .deblob

  4. Offline

    Kekec852

    I'm running on Athlon 64 3000+ with 1,5GB of ram. I probebly mention that I use Ubuntu Server 10.10 and Sun Java x64 and our world is running from ram drive(128MB). I could write ram and CPU consumtion avrage around 40% CPU and 20-50% of RAM. Internet connection asymetric 20Mbit/5Mbit. Max people on sever was 5 with on lag.

    I almost forget to write we using 10 plugins.

    So your config should be enough!?
    --- merged: Feb 2, 2011 3:48 PM ---
    I was writting my post so long that i miss your speed test report. It coukd be your internet connection is a bit to slow for 4+ people ...
     
  5. Offline

    .deblob

    i thought so, too =D

    May i should mention, that I always assign the java process from bukkit to the first 3 cores, javaw from minecraft to the other 3 cores.
    The 3 "java" cores are at 100% when the 4th one joins.

    I also tried assigning the first 5 cores to bukkit => no effect.

    oh, and i use 18 plugins

    .deblob
     
  6. Offline

    TnT

    Its probably your upload speed that's limiting you. My server specs aren't as nice and I can host that many people, lag free.

    However, check your plugins. You may have one in there causing your problems.
     
  7. Offline

    .deblob

    ok, thanks guys
     
  8. Offline

    TnT

    If your CPU is spiking, you have a plugin problem. Regular CraftBukkit doesn't cause CPU spikes like that (at least not that I've seen on any of the builds so far). I have heard of plenty of plugins that cause that though.
     
  9. Offline

    Kekec852

    And TNT ... don't place it more than 2.000 blocks ... it could brake a map ... and CPU will spike to 100% and even server restart won't help you ...
     
  10. Offline

    Akintudne

    I'd say it's your upload speed as well. Also, how much RAM are you allocating to Bukkit?
     
  11. Offline

    .deblob

    In my Run.bat it says
    Code:
    java -Xms1024M -Xmx1024M -jar craftbukkit.jar
    Is this only once 1024MB or twice ?

    And my AddOns are:

    - LWC 1.46
    - Permissions 2.0
    - WarpGate 1.4
    - ScrapBukkit 0.1
    - Bukkit of Blocks 1.0
    - BukkitUp
    - ClayReg v0.2
    - ExtendedDay 1.0
    - Friendly Creepers v?
    - HomeLite 1.3b
    - PingCraft 1.0B
    - PlantSpreader v?
    - SimpleColours 1.01
    - SlowHealth 1.0
    - SuperHeat 1.0

    Is there a Odd one out ?
     
  12. Offline

    Akintudne

    It's once. -Xms means the minimum amount of RAM allocated to java; -Xmx means maximum amount. You need to allocate a whole lot more RAM. Use this instead:

    Code:
    java -Xmn256M -Xms512M -Xmx3072M -jar craftbukkit.jar
    This will triple the amount of RAM available to java, and cut down lag.
     
  13. Offline

    mughi

    heh.. lost a map that way with the hmod plugin LowOrbitIonCannon... friend of mine set the cannon to 100.. where 1 is a big hole, 2 is a really big hole, 3 grinds the server to a crawl, and 10 crashed the server but not the map. (i think the mod specs said that level 10 generates 4Million blocks of TNT)

    fortunately, it was a copy of the world used for testing crazy plugins like that one
     
  14. Offline

    Pezmantbh


    Incorrect, it is the initial heap size. Not minimum ram.
     
  15. Offline

    Akintudne

    Okay, terminology off, but the point and the information is valid.
     
  16. Offline

    Pezmantbh

    The rest of the post was spot on ;) Just the Xms that is nothing to do with minimum ram ;)

    other than that, it was sound.
     
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