Here are five common commands to use when simply testing your VPS!
5、dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
The ‘TOP’ command is used to show the real time CPU usage. It list all tasks which uses CPU.it refresh automatically every 5 seconds.
The ‘TOP’ command allows user sort the tasks by PID, TIME, CPU usage, etc and so on!
The ‘load average’ shows the total resources used. It should be generally below 5 for most personal wordpress website.
The third line shows CPU usage percent. The ‘wa’ shows the hard disk status. Generally, CPU should not exceed 30%. The ‘wa’ percentage over 30% is also a dangerous signal.
The fourth line shows RAM used, total RAM and free RAM storage.
Type Ctrl+C or q to exit ‘top’ command.
you can use it to view mem information.of course，You can still use “free -m”
5.dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync