Problem description:
wAP ac's 5G chip is QCA9880, which is suppose to deliver 70-80M/s data transfer speed with 2 chains(866M)
but with capsman's manager forwarding, wAP ac uses up CPU to deliver 42MB/s(330Mbps) to only 1 client. It's weird. The processing should be on capsman, there is no filter rules, nothing on wAP that eats CPU.
This performance is not reasonable for even a home AP. I'm wondering if there is some tricks to make the setup right.
My setup is:
x86 visualized RouterOS with L4 license as capsman on intel i3 5005(2 core 2.0G, 4 threads)
3x wAP ac with manager forwarding
testing bench:
8700k+z370+intel 9260ac
the wireless adapter can reach 866M without any problem via wAP ac, but the iperf test caps at 42M/s
capsman's CPU is like
wAP's CPU is like
capsman's datapath is simple