Server can't keep up

[rillybob]

Hi, I am setting up a server on my computer for agrarian skies and it keeps saying that the server cant keep up even when the server is empty, but when someone is on and playing their is some random tick lag spikes making items drop a little after you break something. I have ran other servers with modpacks like direwolf on the same machine and had 0 problems and 0 lag. All server files are the same as they were downloaded besides me changing the max ram, so I know its not a ram problem

Windows 7 64bit
8Gb ram
AmdFx 8350 8 core 4.33GHz
Seagate Barracuda 1TB 7200 RPM

http://www.speedtest.net/my-result/3622192548

 

[Connor Gavitt]

That message means your CPU is lagging, I suggest getting hosting from a site or a upgrade. Overclocking a CPU is unstable and GHZ is not everything.

 

[rillybob]

its barely overclocked. the processor is clocked at 4ghz stock. and like i said, everything is the same as when I hosted another server without a single problem

 

[Racemol]

This is really odd.

I have an AS server on an old core2duo processor running at a whopping 2,13Ghz. It's actually behaving kinda good, with 2 end-game bases on it the overall update time is 20-25ms. With the CPU at about 60%. Thats well within the 20TPS.

This is on a dedicated Linux OS (MineOS actually) though.

What other programs are running on your server? Could it be that some other process is using a lot of CPU power? How much RAM and CPU does the Java.exe process take?

 

[Connor Gavitt]

GHz doesn't matter that much, the processor does, first off that is a AMD CPU which is generally behind intel in single threaded performance which is what minecraft needs, and you pointed out that your log shows the "can't keep up" message so that means your CPU is lagging. Make sure nothing else is running execpt for minecraft server, not even a client as most computers cant do both.

 

[Racemol]

There is a sense of truth in what you say, though in this case you're wrong. The AmdFx 8350 is fast enough to run a AS server. There is no way on earth that processor would lag an empty world unless something is wrong with the OS / server settings or hardware. The OP is right that he came here for questions and should not be told that the CPU is the cause, that's just silly. I have to agree that the symptoms seem to point to the CPU, but I'm sure it ain't the specs he has to worry about. Probably a wrong version of java (32 bit??), other high cpu demaning processes is running etc..

I compared it with my own server, which has indeed an intel processor and most of the time those are better. In this case however we're talking about an intel processer released in 2006, that's 8 years ago. The FX 8350 was released in 2012. The clock and bus speeds of the AMD processor are in all cases superior to mine. Single or multi-threaded.

To rillybob I'd say try running the server in a Linux environment like an Ubuntu live cd or something. Just to test it to see if the hardware is at fault or there is something wrong with the software.

 

[Goshen]

Change chickenchunks config and mine factory reloaded to require players to be online for chunks to load.

Also there is a problem in the current hqm mod that checks every single item through the ore dictionary if you break a chest with many items it brings your server to its knees.

Are you running cauldron?

 

[Connor Gavitt]

There is a sense of truth in what you say, though in this case you're wrong. The AmdFx 8350 is fast enough to run a AS server. There is no way on earth that processor would lag an empty world unless something is wrong with the OS / server settings or hardware. The OP is right that he came here for questions and should not be told that the CPU is the cause, that's just silly. I have to agree that the symptoms seem to point to the CPU, but I'm sure it ain't the specs he has to worry about. Probably a wrong version of java (32 bit??), other high cpu demaning processes is running etc..

I compared it with my own server, which has indeed an intel processor and most of the time those are better. In this case however we're talking about an intel processer released in 2006, that's 8 years ago. The FX 8350 was released in 2012. The clock and bus speeds of the AMD processor are in all cases superior to mine. Single or multi-threaded.

To rillybob I'd say try running the server in a Linux environment like an Ubuntu live cd or something. Just to test it to see if the hardware is at fault or there is something wrong with the software.

He would need to provide some sort of logs, the server log, the forge log, his system log, but the only thing we have is the minecraft server saying that his CPU is having trouble. So that's what I'm going on, that CPU is able to run it just fine though which is why I said to check that nothing else is running because if he has a whole bunch of apps running that can be the cause of it.

 

[wolfenstein19]

You could try the cookie-cutter default checklist before trying more complex solutions:

- Make sure server configs are set properly
- Make sure the cpu isn't beeing consumed by some other program
- Make sure you have the latest java
- Make sure you run the recommended jvm-arguments.