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I have minecraft server with a bunch of mods: here the list. The thing is after I explored a big part of world my server began to lag (before that server worked good). When I replaced world with old version of the same world (before exploration and with the same set of mods) lags disappeared. So, I think, I found something in the world that causes lags. How can I find that lagging region and remove the source of lag (kill problem mob, for example, regenerate region)?

This is what I get in console when server starts to lag:

16:24:11 [WARNING] The server is going slow. Last server tick was 20004ms ago
16:24:11 [WARNING] Last Tick: 1398345831441 Current Time: 1398345851445 Warning:
 20000 Timeout: 60000
16:24:11 [WARNING] [TPS]: 16.7 Server Tick #54000
16:24:11 [WARNING]   Dimension:0
16:24:11 [WARNING]   Loaded Chunks: 336 Active Chunks: 154 Entities: 127 Tile Entities: 860
16:24:11 [WARNING]   Entities Last Tick: 83
16:24:11 [WARNING]   Tiles Last Tick: 660
16:24:11 [WARNING]   Dimension:7
16:24:11 [WARNING]   Loaded Chunks: 0 Active Chunks: 0 Entities: 0 Tile Entities: 0
16:24:11 [WARNING]   Entities Last Tick: 0
16:24:11 [WARNING]   Tiles Last Tick: 0
16:24:11 [WARNING]   Dimension:-17
16:24:11 [WARNING]   Loaded Chunks: 0 Active Chunks: 0 Entities: 0 Tile Entities: 0
16:24:11 [WARNING]   Entities Last Tick: 0
16:24:11 [WARNING]   Tiles Last Tick: 0
16:24:11 [WARNING]   Dimension:-31
16:24:11 [WARNING]   Loaded Chunks: 0 Active Chunks: 0 Entities: 0 Tile Entities: 0
16:24:11 [WARNING]   Entities Last Tick: 0
16:24:11 [WARNING]   Tiles Last Tick: 0
16:24:11 [WARNING]   Dimension:-100
16:24:11 [WARNING]   Loaded Chunks: 0 Active Chunks: 0 Entities: 0 Tile Entities: 0
16:24:11 [WARNING]   Entities Last Tick: 0
16:24:11 [WARNING]   Tiles Last Tick: 0
16:24:11 [WARNING]   Dimension:1
16:24:11 [WARNING]   Loaded Chunks: 0 Active Chunks: 0 Entities: 0 Tile Entities: 0
16:24:11 [WARNING]   Entities Last Tick: 0
16:24:11 [WARNING]   Tiles Last Tick: 0
16:24:11 [WARNING]   Dimension:-1
16:24:11 [WARNING]   Loaded Chunks: 26 Active Chunks: 9 Entities: 42 Tile Entities: 19
16:24:11 [WARNING]   Entities Last Tick: 3
16:24:11 [WARNING]   Tiles Last Tick: 8

Minecraft v1.6.4
mcpc+ (forge + bukkit)
Essentials core plugin installed

marked as duplicate by MBraedley, Michel, 3ventic, Billy Mailman, Unionhawk Apr 24 '14 at 16:00

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  • @MBraedley, I didn't find solution there, my lags, as I discovered after trying what was in answers to that questions, have nothing to do with redstone. – Dmytro Apr 24 '14 at 13:19
  • It seems like using Opis is your solution. Have you tried it yet? Sure, it's not one of the top voted answers, but that's probably because it's a mod instead of an external editor or vanilla solution. – MBraedley Apr 24 '14 at 13:37