IEEE802.11w enabled by default

[Henrique de Moraes Holschuh]

On 20/12/2020 06:42, Petr Štetiar wrote:
> I would like to let you know, that there was virtual meeting week ago and you
> can find the meeting minutes on the wiki[1].
> 
> 1. https://openwrt.org/meetings/20201210

FYI, about IEEE802.11w enabled by default:

This is a very limited experience, but here it *tanks* client 
performance here drastically.

The wireless routers are TP-Link Archer C6v2(US) and TP-Link Archer C7v4 
(BR), running openwrt 19.07 snapshot.

I am not sure the slowdown is caused router-side, it could be something 
in the *client* that gets triggered by the 802.11w support, for all I 
know: the only client I have that can hit the throughput where 
performance loss gets more noticeable is a Dell laptop.

The client is running the standard Debian 10 kernel (up-to-date), the 
hardware is a Dell laptop, with a QCA6174 radio and the standard firmware:

ath10k_pci 0000:02:00.0: qca6174 hw3.2 target 0x05030000 chip_id
0x00340aff sub 1028:0310
ath10k_pci 0000:02:00.0: kconfig debug 0 debugfs 0 tracing 0 dfs 0 
testmode 0
ath10k_pci 0000:02:00.0: firmware ver RM.4.4.1.c2-00057-QCARMSWP-1 api 6 
features wowlan,ignore-otp,no-4addr-pad,raw-mode crc32 e061250a
ath10k_pci 0000:02:00.0: htt-ver 3.56 wmi-op 4 htt-op 3 cal otp max-sta 
32 raw 0 hwcrypto 1

I did notice slowdowns on *both* bands (2.4GHz and 5GHz), but it is far 
more visible in 5GHz, since it reaches far higher throughput.

It is bad enough that it is unfeasible for me to even consider enabling 
it :-(

-- 
Henrique de Moraes Holschuh
Analista de Projetos
Centro de Estudos e Pesquisas em Tecnologias de Redes e Operações 
(Ceptro.br)
+55 11 5509-3537 R.:4023
INOC 22548*625
www.nic.br