Problem FTB Direwolf 20 1.6.4 Server Lag

[laserball31]

Hello, I've been experiencing lag that is out of the ordinary. I've tried to make another world, and deleting suspected mods for CPU time... All without any changes.

I'm current using this as my startup script...

java -d64 -server -Xms512m -Xmx12G -XX:PermSize=256m -Djline.terminal=jline.UnsupportedTerminal -XX:ReservedCodeCacheSize=512m -XX:NewRatio=4 -XX:SurvivorRatio=3 -XX:TargetSurvivorRatio=80 -XX:MaxTenuringThreshold=8 -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:SoftRefLRUPolicyMSPerMB=0 -XX:MaxGCPauseMillis=20 -XX:GCPauseIntervalMillis=250 -XX:MaxGCMinorPauseMillis=7 -XX:+CMSClassUnloadingEnabled -XX:+ExplicitGCInvokesConcurrentAndUnloadsClasses -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=50 -XX:+BindGCTaskThreadsToCPUs -XX:+TieredCompilation -XX:Tier0ProfilingStartPercentage=0 -XX:Tier3InvocationThreshold=3 -XX:Tier3MinInvocationThreshold=2 -XX:Tier3CompileThreshold=2 -XX:Tier3BackEdgeThreshold=10 -XX:Tier4InvocationThreshold=4 -XX:Tier4MinInvocationThreshold=3 -XX:Tier4CompileThreshold=2 -XX:Tier4BackEdgeThreshold=8 -XX:TieredCompileTaskTimeout=5000 -XX:Tier3DelayOn=50 -XX:Tier3DelayOff=25 -XX:+UseFastEmptyMethods -XX:-DontCompileHugeMethods -XX:+AlwaysCompileLoopMethods -XX:+CICompilerCountPerCPU -XX:+UseStringCache -XX:+UseNUMA -jar minecraft_server.1.6.4.jar nogui

The messages I am getting in console... (Auto-saving not enabled) The server tick is going slow. The last tick was (something around 21000ms, sometimes more). I'm using MCPC+,

Plugins List:

See Attached

Anyone have any ideas? Also tried with MCPC+ removed and a fresh world, and problem persists.

 

[Ray Herring]

I recommend getting this: http://nallar.me/buildservice/job/T...cessfulBuild/artifact/target/TickProfiler.jar

You may have to go into the config for it and turn the permissions part off (or you could just run the profile command on the console).

Once placed in your mods dir, fire up your server, stop server, change config where required, start server up again.

Wait for the hi CPU event to occur, then do (from the console): profile e

It might take a little longer to do its job during the event, but it will happen, then you just look for the things that are taking an excessively large amount of time to do stuff.

Other option is WarmRoast by sk89q (the worldedit guy), which is a seperate jar that runs independent of the game, assuming you have the MCP mappings for 1.6.4 you can use that to also give you an idea of where the issue might be.

 

[laserball31]

I've already profiled/sampled the jar and nothing seems out of the ordinary. It's not a high CPU event, the server runs fine.... spikes, and kicks everyone off. This needs to be fixed!

 

[laserball31]

Bump. No answers?

 

[tiff]

Having same issue. Same results. It happens when you do /save-all

 

[laserball31]

Having same issue. Same results. It happens when you do /save-all

Unfortunately, that is not the problem I am having. Auto saving is not enabled, unless it is saving and not telling me. My saves take 1-2 seconds.

 

[laserball31]

Bump. No one has a fix?

 

[killer313201]

try this http://forum.feed-the-beast.com/threads/direwolf20-1-6-4-mcpc-server-freeze-lag-while-saving.36565/

 

[laserball31]

Its not saving, for the third time.

 

[killer313201]

then you should allocate more ram 12 Gb is not enough to run a dw20 1.6.4 server with many people on it you have 40 Gb you should allocate 32 Gb it will help the lag free


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[laserball31]

Dude. Its not the RAM. I can put in as much as 40 GB of ram and nothing will change. It is something wrong with a mod.

 

[killer313201]

did you tried opis ?


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[laserball31]

Yes. Opis reveals nothing out of the ordinary.

 

[killer313201]

i know that TE3 have a big problem with the old pipes and they should all be removed or it can corupt the chunks like on another server i played on


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[Connor Gavitt]

then you should allocate more ram 12 Gb is not enough to run a dw20 1.6.4 server with many people on it you have 40 Gb you should allocate 32 Gb it will help the lag free


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...no no minecraft server needs 32GB of ram in fact that much will slowdown java garbage collection and CAUSE lag.


Also I don't see your server specs, can you post them? Is the server on your home computer?

 

[Quelic]

I've been having the same problem random spikes of lag kicking (most) everyone. I was running /chunkloaders at the time and it spiked to around 7000 loaded chunks below is a picture of single player and the modpack not unloading chunks.

http://imgur.com/3sR2uuD

 

[Connor Gavitt]

/chunk loaders usually causes lag or even crashes the sever. But we will need to know what hardware this server has.

 

[laserball31]

Specs: 40GB of DDR3 RAM, Intel Xeon E2620, Samsung SSD 120GB, 500 GB of HDD

 

[killer313201]

I've been having the same problem random spikes of lag kicking (most) everyone. I was running /chunkloaders at the time and it spiked to around 7000 loaded chunks below is a picture of single player and the modpack not unloading chunks.

http://imgur.com/3sR2uuD

oh god maybe this is why the server is laging is there any way to fix it ?


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[laserball31]

oh god maybe this is why the server is laging is there any way to fix it ?


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Impossible. Chunk Loaders are banned completely, and chicken chunks mod is removed completely.