By default zabbix is able to check the total number of processes on a machine and triggers and error if these are above 300.
Clearly this doesn't work well for bigger machines. I do have a server with 32 codes and obviously 300 processes would be nothing for this machine.
I do want to change this rule to trigger a warning if the number of process per CPU is greater than 300.
This trigger is inside linux template and is named "Too many processes on {HOST.NAME}", the default values is "{Template OS Linux:proc.num[].avg(5m)}>300"
I tried to write something like {Template OS Linux:proc.num[].avg(5m)}/{Template OS Linux:system.cpu.num}>300
but it seems that zabbix (2.2) doesnt like this trigger expression.
Incorrect trigger expression. Check expression part starting from "/{Template OS Linux:system.cpu.num}>300".
What is the correct way to re-configure this check?