server laggging, did i do this right?

[behedwin]

i started a server for 5 ppl

i have started using this string in the .bat file

java -Xms2024M-Xmx6G-jar ftbserver.jar

it is still lagging for us, 2 ppl on the server.

what can i do?

 

[Staxed]

java -Xms2024M -Xmx6G -jar ftbserver.jar

make sure you have the spaces and see if that solved the issue

 

[behedwin]

nope, did not do any change.
still lagging.

 

[Byte Templar]

Does your server have at least 6 gig memory? Are you running 64bit OS and Java? What about the processor of your server?

 

[behedwin]

computer got 8gig memory
running 64bit os
have 64bit java 7 (64bit) update 21

 

[cjm721]

If the server is lagging Ram has nothing to do with it. That is a CPU issue (or just a mod using way more then it should but that is still a CPU limiter that effects how much damage incorrect coding does).

 

[behedwin]

intel core i5 cpu 750 @ 2,67ghz 2.00ghz

is the cpu i have.

 

[cjm721]

is it 2.67 Overclocked from 2.00 or what? And that is not that fast but considering for 5 people that is a bit strange. Are you using java 6 or 7?

 

[behedwin]

using java 7
my internet is 100/100mbit

we moved the server to a friends computer (new computer)
and it worked much better.

so i guess my hardware is to "old" (two years) for it to run smooth.

 

[Staxed]

using java 7
my internet is 100/100mbit

we moved the server to a friends computer (new computer)
and it worked much better.

so i guess my hardware is to "old" (two years) for it to run smooth.

yeah, that cpu is a little underpowered for running a modded server (it might run a vanilla server for 5 people ok, but modded uses so much more cpu).

 

[Byte Templar]

Quite odd, cause Im running Unleashed server with 2 people playing without any problems on Atom D550 and 4 gig of RAM, so i5 should be more than enough imo!

 

[behedwin]

indeed, very strange!
then my machine should be able to run this.

 

[cjm721]

the amount of cores does not help when Minecraft (is normmaly) a single thread. Its the clock speed of the single core it is running on that determines most of the processing power for it (GC, JVM, and the os are still running so having more cores can help but the clock speed of a single core is usually more important)

 

[Byte Templar]

Still it doesn't explain how my Atom D550 (1.6Ghz) can run the server and i5 cant. Atom is low powered, low end processor, and i5 beats it in every possible way...

Do you use Windows as server btw? I use Debian Linux on my box