Quote from McScavenger
You can give as much ram to a server as you want, but that doesn't mean it'll use it. At the moment, I have my server running with a max of 3Gb, and it's using a total of 420Mb (with no players online). When more players join, it'll use more of that 3Gb. When it reaches 3Gb (which I doubt it will), it will no longer be able to get more ram, and get overloaded if it requires more.
The same goes with you. 6Gb is an overkill, judging by that you're running it off of your PC, and it's only using 500Mb. I'd say 2 - 3 Gb is enough. When the server needs more than the 500Mb, it'll use it.
Quote from Izraili
Ram does not equal to performance.
I like the explanation of "If you were solving a math problem, the RAM would be how much paper space you could use to solve it"
Basicly, it doesnt use more than it needs to, as stated above.
Thanks for the information friends.