How is CPU Utilization calculated for Linux server?
Telnet/SSH mode:
We are using /usr/bin/vmstat 1 3 command to get the CPU Utilization for Linux servers.
Assume the output below:
#/usr/bin/vmstat 1 3
procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 0 1810676 1359624 6483400 0 0 63 96 265 186 29 14 57 0 0
0 0 0 1810648 1359632 6483508 0 0 0 80 3056 8822 6 4 90 0 0
0 0 0 1808588 1359632 6485636 0 0 0 4 4690 12377 14 5 81 2 0
Formula:
CPU Utilization = 100-id ==> 100-81 ==> 19%
CPU Utilization = 19%
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