Get Average of CPU Utilization

[mdetlof]

Is there a way i can get check_cpu to output something like "OK: Cpu usage is xx%". Where xx is the average cpu usage across all cores? Any help would be appreciated.

[mickem]

Certainly...

Step 1: Change the top syntax to always include the CPU load:

check_cpu "top-syntax=%(status): %(list)"
L        cli OK: OK: 5m: 16%, 1m: 30%, 5s: 23%
L        cli  Performance data: 'total 5m'=16%;80;90 'total 1m'=30%;80;90 'total 5s'=23%;80;90

Step 2: Change the time to only use a single time:

check_cpu "top-syntax=%(status): %(list)" time=5m
L        cli OK: OK: 5m: 25%
L        cli  Performance data: 'total 5m'=25%;80;90

Step 3: Change the detail syntax to not include the time:

check_cpu "top-syntax=%(status): %(list)" time=5m "detail-syntax=%(load) %"
L        cli OK: OK: 26 %
L        cli  Performance data: 'total 5m'=26%;80;90

Lastly we change the top-syntax to match the output you wanted:

check_cpu "top-syntax=%(status): Cpu usage is %(list)" time=5m "detail-syntax=%(load) %"
L        cli OK: OK: Cpu usage is 26 %
L        cli  Performance data: 'total 5m'=26%;80;90```

The double "OK" is due to me using the test client which outputs the return code so in Nagios or similar you will see: OK: Cpu usage is 26 %.

If you have client which adds the status you can remove it like so:

check_cpu "top-syntax=Cpu usage is %(list)" time=5m "detail-syntax=%(load) %"
L        cli OK: Cpu usage is 24 %
L        cli  Performance data: 'total 5m'=24%;80;90

If this is not what you are looking for, please reopen this discussion with more details.