I have a feeling it is something to do with entities spawning/ despawning at least that's how it feels, we are seeing the CPU usage go through the roof after stable play. If we are to simply restart the server it does as it should and restarts but immediately starts and holds the same high CPU usage, you have to fully stop the server wait a few minutes and then start to see the CPU return to normal this was never the case in 1.13.2
The reason I say about mob spawning, in particular, is once we've started to see the CPU creep up I have changed over to spectator mode and the number of mobs in caves which should have despawned is unbelievable.
I have a feeling it is something to do with entities spawning/ despawning at least that's how it feels, we are seeing the CPU usage go through the roof after stable play. If we are to simply restart the server it does as it should and restarts but immediately starts and holds the same high CPU usage, you have to fully stop the server wait a few minutes and then start to see the CPU return to normal this was never the case in 1.13.2
The reason I say about mob spawning, in particular, is once we've started to see the CPU creep up I have changed over to spectator mode and the number of mobs in caves which should have despawned is unbelievable.