Jenkins running at very high CPU usage

Question

I recently upgraded from Jenkins 1.6 to 2.5. After I did this, I noticed very high CPU usage, sometimes over 300% (there are only 4 cores, so I don\'t think it could go over 40

Answer 1

Try passwing following argument to jenkins:

-Dhudson.util.AtomicFileWriter.DISABLE_FORCED_FLUSH=true

as mentioned here: https://issues.jenkins-ci.org/browse/JENKINS-52150