Noticed very high CPU Usage on an RB750Gr3
Profile showed that the “management” process was using almost between 24% and 27% of CPU and another “unclassified” process was using another 16% CPU
NAME USAGE
ethernet 0%
console 1%
ssh 0%
firewall 0.1%
networking 5.6%
neighbor-discovery 0%
winbox 0%
logging 0.8%
management 24.3%
encrypting 0.1%
profiling 3.2%
unclassified 15.8%
total 50.9%
As this is a test device I reset it to defaults and with a simple default config same CPU usage occurs. No optional/wireless packages installed. As you can see below, the config could barely be simpler.
# 2024-03-24 13:01:03 by RouterOS 7.15beta8
# software id = XXXX-XXXX
#
# model = RB750Gr3
# serial number = XXXXXXXXXX
/interface bridge
add name=bridge1
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=ether2
add bridge=bridge1 interface=ether3
add bridge=bridge1 interface=ether4
add bridge=bridge1 interface=ether5
/ip neighbor discovery-settings
set discover-interface-list=!dynamic
/ip address
add address=172.20.0.254/16 interface=bridge1 network=172.20.0.0
/system note
set show-at-login=no
/system routerboard settings
set auto-upgrade=yes
I also have a test CHR running 7.15beta8 that does not display the same behaviour.