VDS Upgrade?

[Storm]

The CPU is getting close to maxing out on my 1 Core VDS running Debian at peak times with about 28 players, how much more could it handle if I upgraded to a 2 core?

[TimeX]

If your server can take full advantage of two cores then it should be close to double, as far as CPU is concerned. If what you are running isn't multi-threaded, an extra core won't help much aside from offloading background tasks for the OS to the other core.

[Storm]

I'm pretty sure srcds can use one core for networking and the other for everything else, but I don't know if it would make a difference.

[TimeX]

It can take advantage of multiple cores, yes. I'm not 100% sure if it will let you double the players since other considerations can come up on such large servers, but it should help a fair bit either way.

[Edge100x]

Source is lightly multithreaded, and an upgrade might help, though it's tough to say how much. You could also run more than one server with an upgraded config, of course.