Ceiling value in item

[5151]

Hello!
I calculate CPU utilization in percent using this expression:

100*last("system.cpu.load[,avg1]")/last("system.cpu.num[max]")

But sometimes when process queue is very long this value can grow more than 100%. Please tell me how to modify my expression to ceil (limit to 100) its value.
For example if it's 95% then return it as is. And if it's 105% then return just 100%

[alixen]

Hi,

The main problem is that you are not computing CPU utilization.
CPU Load has a different meaning and can be much larger than 100% (even divided by the number of CPUs).

What you are looking for can be computed with system.cpu.util[,idle]:

100*(1-last("system.cpu.util[,idle]")

Regards,
Alixen

[5151]

Hi,

The main problem is that you are not computing CPU utilization.
CPU Load has a different meaning and can be much larger than 100% (even divided by the number of CPUs).

What you are looking for can be computed with system.cpu.util[,idle]:

100*(1-last("system.cpu.util[,idle]")

Regards,
Alixen

Thank you for answer. But we used to check this value and many of our limits are adjusted to this value. The only thing i need to do is to limit specified item value if it is more than 100.

[zabbix_zen]

Not an available function.

I guess your main problem is some superior of yours getting baffled receiving an over 100% CPU utilization message (corresponding to CPU load).

Like Alixen said,
to avoid misinterpretations, you should use his suggested expression.