问题起因

通过 TOP 发现 KSM 相关进程使用 CPU 过高，也通过https://access.redhat.com/solutions/5706451 等已验证的SOLUTION进行了解，发现出现此情况的基本为使用 Virtualization 版本或 VM 或 hyperV 等等虚拟化相关场景。但这边出现此问题的使用场景的服务器为 x86 物理机，并不是虚拟化相关

问题排查

重启服务，使用 root 用户执行

systemctl restart ksmtuned.service

• To deactivate KSM for a single session, use the systemctl utility to stop ksm and ksmtuned services.

  # systemctl stop ksm
    
  # systemctl stop ksmtuned
  

• To deactivate KSM persistently, use the systemctl utility to disable ksm and ksmtuned services.

  # systemctl disable ksm
  Removed /etc/systemd/system/multi-user.target.wants/ksm.service.
  # systemctl disable ksmtuned
  Removed /etc/systemd/system/multi-user.target.wants/ksmtuned.service.