Value of item system.cpu.load[percpu,avg1] > 2

[wyang]

Hello,

The item system.cpu.load[percpu,avg1] monitors the per core CPU load, which is expected to be <= 1.

However, the values of the item system.cpu.load[percpu,avg1] on two servers display > 2 for somewhile.

Any idea on why? Thanks.

Zabbix server version: 2.4
Zabbix agent version: 2.4

[jpomorski]

Hello,

Percpu parameter divide system cpu load value by numer of cores. So if your system cpu load is for example 8 and you have 4 cores, you get value 2.

Jarek

[wyang]

Thanks very much for the reply.

From some Internet resources on understanding Linux CPU load, it is stated "the '100% utilization' mark is 1.00 on a single-core system." Therefore, I expect that the max value of the item system.cpu.load[percpu,avg1] <=1.

However, monitoring history shows that the maximum values of the item system.cpu.load[percpu,avg1] on two servers display > 2.4

Any idea on why? Thanks very much!