Why does zabbix show such values?

Question

Debian

There is a VPS with debian 10. The zabbix agent is installed there, which shows the load on the cpu within 60% (mostly within 20% with peaks up to 60). However, if you log in via ssh and turn on top, we will see periodic jumps up to 320-330%, which gives about 80% with 4 cores. Tried different versions of zabbix, zabbix agent. Everywhere is the same.
How can such a difference be explained?

Answer 1

https://www.zabbix.com/documentation/current/ru/ma...
system.cpu.util[<cpu>,<тип>,<режим>]

cpu - CPU number (all CPUs by default)
type - possible values:
idle, nice, user (default), system (default for Windows), iowait, interrupt, softirq, steal, guest (on Linux kernel 2.6. above), guest_nice (on Linux kernel 2.6.33 and above). User and nice time parameters no longer include guest time and guest_nice time since Zabbix 3.0.14, 3.4.5 and 4.0.0.
mode - possible values:
avg1 (averaging over one minute, default), avg5, avg15

It turns out that system.cpu.util[,user,avg1] is shown by default, that is, loading only in user space with an average of 1 minute, and top shows the load at the moment, including both kernel space, user space, and iowait.
Simply put, you are comparing warm to soft.