当我 ssh 到我的 Ubuntu 服务器时，我通常会收到
Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-45-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information disabled due to load higher than 1.0
* Canonical Livepatch is available for installation.
- Reduce system reboots and improve kernel security. Activate at:
https://ubuntu.com/livepatch
0 packages can be updated.
0 updates are security updates.
这里，
System information disabled due to load higher than 1.0
根据负载有条件地运行 landscape-sysinfo
System information as of Tue Feb 19 04:22:46 UTC …