14 Command Line Tools to Check CPU Usage in Linux

• 1) Top. The top command displays real time view of performance related data of all running processes in a system.
• 2) Iostat.
• 3) Vmstat.
• 4) Mpstat.
• 5) Sar.
• 6) CoreFreq.
• 7) Htop.
• Nmon.

How do I check CPU usage?

If you want to check how much percent of your CPU is used right now, just click the CTRL, ALT, DEL buttons at the same time, Then click on Start Task Manager, and you will get this window, applications. Click on Performance to see the CPU USAGE and the Memory usage.

How do I see CPU usage on Linux?

To quit “top”, you have to press Q key of your keyboard. To use this command, you have to install a package called sysstat. For Ubuntu or Debian systems, you can install this package using apt-get. This command will display CPU utilization 2 seconds apart, 5 times as shown below.