Lag Spikes and Performance Issues

Discussion in 'Bukkit Help' started by zettairyouiki, Mar 29, 2011.

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    zettairyouiki

    The server I've been running has recurring issues with lag spikes. It often can handle the traffic we get just fine with no issues whatsoever, but occasionally the CPU usage will peg at full for the core it's running on for apparently no reason. They will typically last anywhere from 30 seconds to 5 minutes, and occur with varying frequency.

    [​IMG]

    This is what it looks like. In most cases, the chart for the core it's using shows a steady line at full.

    Any ideas what could be the cause of these temporary processing spikes? It has been suggested to me that I'm trying to run too many plugins, but I doubt this for the reason that if that were the case, wouldn't it be sluggish all the time? Another possibility is it sometimes seems to be triggered by server joins or teleporting, but that's not always the case.

    Running Windows Server 2003 x64
    Typical server startup log:

    Code:
    2011-03-29 00:28:42 [INFO] Starting minecraft server version Beta 1.3
    2011-03-29 00:28:42 [INFO] Loading properties
    2011-03-29 00:28:42 [INFO] Starting Minecraft server on *:22
    2011-03-29 00:28:42 [INFO] This server is running Craftbukkit version git-Bukkit-0.0.0-516-gdf87bb3-b531jnks (MC: 1.3)
    2011-03-29 00:28:42 [INFO] Preparing level "world"
    2011-03-29 00:28:42 [INFO] Preparing start region
    2011-03-29 00:28:43 [INFO] LWC    Loading shared objects
    2011-03-29 00:28:43 [INFO] LWC    Native library: plugins/LWC/lib/native/Windows/amd64/sqlitejdbc.dll
    2011-03-29 00:28:43 [INFO] [AutoMessage] version [1.5] loaded
    2011-03-29 00:28:43 [INFO] BorderGuard Lite (Round) version 2.1 is enabled!
    2011-03-29 00:28:43 [INFO] [DeathTpPlus] 5 Kill Streaks loaded.
    2011-03-29 00:28:43 [INFO] [DeathTpPlus] 5 Death Streaks loaded.
    2011-03-29 00:28:44 [INFO] GroupManager - INFO - Scheduled Data Saving is set for every 10 minutes!
    2011-03-29 00:28:44 [INFO] GroupManager version 1.0(alpha-5) is enabled!
    2011-03-29 00:28:44 [INFO] Fake Permissions version 2.5.1 is enabled!
    2011-03-29 00:28:44 [INFO] [DeathTpPlus] Using Permissions
    2011-03-29 00:28:44 [INFO] [DeathTpPlus] version 1.8 by lonelydime is enabled!
    2011-03-29 00:28:44 [INFO] ┬žeLoaded Essentials build 2.0.286 maintained by Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo and ceulemans.
    2011-03-29 00:28:44 [INFO] Loaded EssentialsChat build 2.0.286 by Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo and ceulemans.
    2011-03-29 00:28:44 [INFO] Loaded EssentialsSpawn build 2.0.286 maintained by Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo and ceulemans.
    2011-03-29 00:28:44 [INFO] [iAuction] (version 2.5) is enabled!
    2011-03-29 00:28:45 [INFO] [iConomy] Logging is currently disabled.
    2011-03-29 00:28:45 [INFO] [iConomy] v4.4 (Arcadia) loaded.
    2011-03-29 00:28:45 [INFO] [iConomy] Developed by: [Nijikokun, Coelho]
    2011-03-29 00:28:45 [INFO] [(Plugin)] Successfully linked with iConomy.
    2011-03-29 00:28:45 [INFO] [iConomy] hooked into Permissions.
    2011-03-29 00:28:45 [INFO] [iAuction] Permissions support enabled!
    2011-03-29 00:28:45 [INFO] LocalShops: Permissions found.
    2011-03-29 00:28:45 [INFO] LocalShops: iConomy found.
    2011-03-29 00:28:45 [INFO] LocalShops: Loading shop Bayside_Bank
    2011-03-29 00:28:45 [INFO] LocalShops: Loading shop Bayside_Market
    2011-03-29 00:28:45 [INFO] LocalShops: Loading shop GeneralStore
    2011-03-29 00:28:45 [INFO] LocalShops: Loading shop Gensokyo_Market
    2011-03-29 00:28:45 [INFO] LocalShops: Loaded 4 shop(s).
    2011-03-29 00:28:45 [INFO] LocalShops: version 1.15b is enabled!
    2011-03-29 00:28:45 [INFO] LWC    Loaded 35 locale strings (0 overrides)
    2011-03-29 00:28:45 [INFO] LWC    Using Nijikokun's permissions plugin for permissions
    2011-03-29 00:28:45 [INFO] LWC    Loading SQLite
    2011-03-29 00:28:46 [INFO] SQLite    Using: Pure
    2011-03-29 00:28:46 [INFO] LWC    At version: v2.00
    2011-03-29 00:28:46 [INFO] [mcMMO] Permissions enabled.
    2011-03-29 00:28:46 [INFO] mcMMO version 0.9.11 is enabled!
    2011-03-29 00:28:46 [INFO] NoFire version 1.0 is enabled!
    2011-03-29 00:28:46 [INFO] [Towny] Database: [Load] flatfile [Save] flatfile
    2011-03-29 00:28:47 [INFO] [Towny] Using: Permissions, iConomy, Essentials
    2011-03-29 00:28:47 [INFO] [Towny] Version: 0.51 - Mod Enabled
    2011-03-29 00:28:47 [INFO] [WormholeXTreme][v0.801][By Lologarithm & alron]Load Beginning.
    2011-03-29 00:28:48 [INFO] [WormholeXTreme]Attached to Permissions version 2.5.1
    2011-03-29 00:28:48 [INFO] [WormholeXTreme]Attached to iConomy version 4.4
    2011-03-29 00:28:48 [INFO] [WormholeXTreme]3 Wormholes loaded from WormholeDB.
    2011-03-29 00:28:48 [INFO] [WormholeXTreme][v0.801]Load Completed.
    2011-03-29 00:28:48 [INFO] Done (0.636s)! For help, type "help" or "?"
    
     
  2. Offline

    mughi

    out of curiosity, check the windows event logs for the times surrounding the lag spikes.. you might find something.. (probably not, but it wouldn't hurt to check)
     
  3. Offline

    Plague

    What about file indexing? Isn't that going on when the lag comes?
     
  4. Offline

    zettairyouiki

    [​IMG]

    Referring to this indexing, or something else? I'll disable it either way since I won't be needing it.
     
  5. Offline

    Plague

    Yes I meant that.
    What about antivirus software?
     
  6. Offline

    zettairyouiki

    Running none. Dedicated VPS.
     
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