I use zyxel gs1900-8 (RTL8380M) as a bridge firewall with openwrt 22.03.2.
But when I copy file between vlan , the bandwidth maxmium about 20Mb/s.
I use top command and found cpu high .
8 2 root RW 0 0% 78% [ksoftirqd/0]
865 2 root IW 0 0% 14% [kworker/0:2-eve]
and kernel eth0 interrupts increase rapidly.
root@OpenWrt:/# cat /proc/interrupts
7: 219582 MIPS 7 timer
19: 0 realtek-rtl-intc 19 realtek-otto-wdt
20: 8 realtek-rtl-intc 20 rtl838x-link-state
24: 4469097 realtek-rtl-intc 24 eth0
31: 158991 realtek-rtl-intc 31 ttyS0
Is RTL8380M chip performance poor ?
This is a switch, not a firewall or router. So yes: the performance of the SoC is poor, as it is only meant for management/configuration purposes.
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