High CPU idle on 1.14.4 PaperMC with no players on server

I have a small server running on an intel quad core with 4GB ram and a 1TB SSD.
On 1.13 the cpu idle when no-one was connected to the server was about 3%.

Since changing to 1.14.4 it has jumped to 25%.

Can some one please point me in the right direction to find out what is causing such a high idle.
Considering the sever is empty 90% of the time I would like to find the culprit.
I running Debian 4.9.130-2 (2018-10-27)
with Java:
java version “1.8.0_191”
Java™ SE Runtime Environment (build 1.8.0_191-b12)
Java HotSpot™ 64-Bit Server VM (build 25.191-b12, mixed mode)

I am not running any plugins on the server.


This is a known issue in minecraft and paper. There is an official bug report and a pull request open to fix this. :+1:

I searched google and this forum before I posted :facepalm: thanks for the reply.
I’ll keep an eye on it.