Insufficient host memory or high CPU usage affects the host's service delivery capability, resulting in performance deterioration.
Linux Hosts
For a Linux host, run the top command to view the information. The top command is a common performance analysis tool in Linux. It can display the resource usage of each process in the system in real time.
Log in to the Linux host as the root user.
Run the top command to check the resource usage of each process in the system.
In the preceding command output, 99.7%id indicates the idle percentage of CPU0, and 100%-99.7% indicates the usage of CPU0.
