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

2.5 seems to be a development release, while 1.6 is their Long Term Support version. Thus it seems logical that you should expect some regressions when using the bleeding edge version. The bounty on this question is proof that other users are experiencing this as well. The solution is to report a bug on the Jenkins bug tracker. You can temporarily downgrade to the known good version for now.