How is the total CPU usage calculated for a Linux server monitor?

CPU Utilization is calculated using the 'top' command.

CPU Utilization = 100 - idle time

Eg:

idle value = 93.1 

CPU Utilization = ( 100 - 93.1 ) = 6.9%

If the server is an AWS instance, CPU usage is calculated using the formula:

CPU Utilization = 100 - idle_time - steal_time

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