Linux Performance Issues: High CPU Usage Without Clear Cause – Need Expert

Hi,
I’m experiencing unusually high CPU usage on my Linux system, even when no resource-intensive processes are running. I’ve checked system logs, monitored processes with top and htop, but I can’t pinpoint the cause. Could this be related to a misconfigured service, a kernel issue, or something else? I’d appreciate any insights from the community on troubleshooting methods and potential fixes .