[Iguman]

What are the system requirements of running a sa-mp server on Ubuntu 16.04 x64 (RAM, CPU..) ?

I have installed Open Game Panel so I'm wondering how good VPS do I need to run 10 servers for example?

[Banditul18]

You can open the server in your pc and watch the ram/cpu usage via task manager(windows) and you can make an aproximation(also would be helpful if you enter the server and see how much the usage gone up so you can aproximate the usage with x players on)