RE: Terrible performance form Lenovo Ideapad using RTL8852AE 802.11ax on 5.17 kernel (ubuntu)

[Ping-Ke Shih <pkshih@realtek.com>]

Hi, 

> -----Original Message-----
> From: Andrew than <linux_kernel_aathan@memeplex.com>
> Sent: Wednesday, August 3, 2022 1:54 AM
> To: linux-wireless@vger.kernel.org
> Subject: Terrible performance form Lenovo Ideapad using RTL8852AE 802.11ax on 5.17 kernel (ubuntu)
> 
> Hello all:
> 
> Please direct me on what additional information I can provide.
> 
> I recently added a Lenovo Ideapad to my wifi network. Two mac hosts on
> that network experience no issue whatsoever with the network (desktop +
> macpro laptop).
> 
> A simple scp test between the desktop & macpro vs desktop & lenovo
> yields a 50% difference in throughput.

Please share the real throughput you saw.

To check the status during you do scp test, please enter debug entry of this driver,
and capture log by:

  /sys/kernel/debug/ieee80211/phy0/rtw89$ while [ 1 ]; do cat phy_info; sleep 2; done | tee scp_test.log

Then, send the result to me. If there is privacy problem, please send
private mail to me directly.

Also, you can try 'iw wlan0 set power_save off' to see if it helps.

[...]

>         configuration: broadcast=yes driver=rtw89_pci
> driverversion=5.17.0-1014-oem firmware=N/A ip=192.168.x.x latency=0
> link=yes multicast=yes wireless=IEEE 802.11
>         resources: irq:64 ioport:2000(size=256) memory:d1600000-d16fffff
> 

Please check firmware you are using via /var/log/kern.log:
The firmware version looks like:
   rtw89_8852ae 0000:03:00.0: Firmware version 0.13.36.0, cmd version 0, type 1
   rtw89_8852ae 0000:03:00.0: Firmware version 0.13.36.0, cmd version 0, type 3


Ping-Ke