Whenever I enable Factions and Mcore, and I start my server, my CPU usage spikes to 99%-100% with no warnings nor errors.
Factions 2.2.0 MCore 6.8.0 CB 1.6.4-R0.1
See there. Please CPU sample your server with VisualVM and post the data here so we can see what the CPU is actually doing. Also post some server specs like what CPU you have.
i get the same 8-cores @ 3.2GHz 16GB RAM on dedicated 3 cores and 6GB ram going to my minecraft server. spikes around 140 - 100% Spigot -
Well I dont get that when I run my own plugins. Unless you can show me a profiling report saying that it's my plugins causing it I will not beleive that is the case :)
I have the same problem, I updated to 2.x from 1.6.x and now my CPU is randomly spiking.