"1 min average per core" is the average of each core, not the average of the CPU. A CPU can have more than one core.
grep Proc/proc/cpuinfo found for 24core, find the template in the item, find this template "template OS Linux", click on item, you will see this: Processor Load (1 min Average per core)
SYSTEM.CPU.LOAD[PERCPU,AVG1]
Make some adjustments to the parameters inside, such as removing percpu or changing to ALL,SYSTEM.CPU.LOAD[<CPU>,<MODE>],CPU (s) load. Processor load. The CPU and mode are optional. The IF CPU is missing all is used. If mode is missing AVG1 is used. Note that this is not percentage.
Test:
Zabbix_agentd-t "SYSTEM.CPU.LOAD[ALL,AVG1]"---------OK
Zabbix_agentd-t "SYSTEM.CPU.LOAD[,AVG1]"------------OK
After you modify the key, the ZABBIX_AGENTD does not restart and automatically takes effect.
Zabbix Monitoring System The value of the average load and the value of the uptime are very large.