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Stack Overflow has this thread on Jenkins High CPU Usage khugepageds.
Solution
- Clean up any errant cron jobs.
No errant cron jobs found. - Kill all of the errant processes.
CPU came back down to normal, but crept back up as those processes were restarted by some cron job script. - Kill all errant processes and immediately restart server s14 (the server that hosts jenkins and confluence).
This time, the processes stayed down. - Rebuild Jenkins image with the latest LTS version 2.164.2
- Start Technology Nursery services: technologynursery.start
- On Jenkins, upgrade all plugins
CPU utilization has stayed normal (>2%) for the past two hours. Confluence is responsive again.
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