Once the game reaches 150+ entities the game begins to cause loads of stress on the computer. On better computers the count may be more, but on my server its terrible. The new server running thingy seems to be very finicky on this new patch. Meaning things like small amounts of animals can cause massive crashes and massive lag spikes. On previous versions(Just so you don't think its a bad computer) the lag wouldn't come to my untill around 250 AND EVEN THEN it wouldn't cause the super crash (Just so you know I've run a server since 1.6 Beta, I usually know what causes this scale of lag). When playing my new world on 1.8 on my server it began to kick players. Then when they log in, 30 seconds after being frozen they(and my self) get kicked. The server shows ABSOLUTELY NO SIGN of lag. WHAT? WHY? I can't figure that out. But if you relog into the server and your player "is still in the game?" the server has a FATAL crash that is like 100 lines a second of some repeating code. After Spending countless hours I decided to take it on in game. After watching a video of one of my fav youtubers(dcom77) he said that the mindcrack server was lagging due to entity count. So, I went in game after thinking it was a corrupt chunk I realized the server only locked up when I looked at the sheep of 100+. So to test the theory, before I was kicked I walked out of the way for entity rendering on the screen and relogged. Once logging in again there was NO crash at ALL. So I killed all of them except 6 and the server works again. Please do something about this.