Hey spigot, My question is: how much players my server can hold? Details are down below. I made a minecraft server on a dedicated server. The operating system that its running on is Ubuntu server. The processor it has is a Intel Core i5-3470 and it has 16 gb ram. 12gb is pointed to the server. Keep in mind that the ram is DDR3 and I don't know the speed of it. The server has 6 plugins and one of them is a big factions plugin. Ethernet speed: upload: 40mbps download: 250mbps Thanks in advance.
I think to be safe 40-50 players. Since it's not that powerful of a machine, but you're only using 6 plugins which are quite optimized and are safe to use.
According to http://canihostaminecraftserver.com/, you can host 121 players. I'd probably set the max player limit at 100-115 players.
Keep in mind MC version will effect the performance. the 100-115 may be possible in 1.12.2, but 40-50 in 1.15.2. Also suggest optimizations to increase these numbers. EDIT: That site would be better if it factored in CPU speed, as that is important for the current versions of MC.