Re: [Linux Realtek Wi-Fi support] rtl8192ee related bug

From: Sergey Kharitonov <haritonovsb@gmail.com>
To: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Subject: Re: [Linux Realtek Wi-Fi support] rtl8192ee related bug
Date: Sat, 10 Aug 2019 22:13:45 +0400	[thread overview]
Message-ID: <CAHmv74wNOM1QKUPp2Vax2Z+-JyoFC81WHVZ+XbYgiRMUGxCFUQ@mail.gmail.com> (raw)
In-Reply-To: <9172166a-eb77-a508-ba54-08fdf96912fc@lwfinger.net>

Dear Mr. Finger!
Thank you for paying attention to the problem. I've just posted an
updated information to that bug before receiving this message.

I get these results
~]$ ping 192.168.88.1
PING 192.168.88.1 (192.168.88.1) 56(84) bytes of data.
64 bytes from 192.168.88.1: icmp_seq=1 ttl=64 time=0.746 ms
64 bytes from 192.168.88.1: icmp_seq=2 ttl=64 time=0.868 ms
64 bytes from 192.168.88.1: icmp_seq=3 ttl=64 time=0.853 ms
64 bytes from 192.168.88.1: icmp_seq=4 ttl=64 time=0.868 ms
64 bytes from 192.168.88.1: icmp_seq=5 ttl=64 time=0.818 ms
64 bytes from 192.168.88.1: icmp_seq=6 ttl=64 time=0.844 ms
64 bytes from 192.168.88.1: icmp_seq=7 ttl=64 time=0.841 ms
64 bytes from 192.168.88.1: icmp_seq=8 ttl=64 time=0.913 ms
64 bytes from 192.168.88.1: icmp_seq=9 ttl=64 time=0.844 ms
64 bytes from 192.168.88.1: icmp_seq=10 ttl=64 time=0.886 ms
^C
--- 192.168.88.1 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 387ms
rtt min/avg/max/mdev = 0.746/0.848/0.913/0.044 ms

with a driver from rtl8192ee_revised.tar.bz2 file in
https://github.com/lwfinger/rtlwifi_new/tree/extended repository built
against Linux 4.19.65-1-lts ArchLinux current LTS kernel.

Connection speed and stability on a heavy load are also perfect.

Hope this info would help solving current rtl8192ee problem.

Please let me know if any additional info is needed.

Best regards,
Sergey Kharitonov

On Sat, Aug 10, 2019 at 9:16 PM Larry Finger <Larry.Finger@lwfinger.net> wrote:
>
> On 8/9/19 12:25 AM, Sergey Kharitonov wrote:
> > Dear Linux-Wireless,
> > Some time ago a bug was reported
> > https://bugzilla.kernel.org/show_bug.cgi?id=202943 related to
> > rtl8192ee, the essence of which is high ping latency (even to the
> > access point) without downloading something. If you generate a network
> > load with a background download or just ping -i 0.001 -s 512.... the
> > latency stabilizes and stays low.
> > I tested my TP-Link TL-WN881ND v2 adapters (I got two of them in my
> > PCs plugged in different motherboards (ASUS and MSI)) and the problem
> > still persists in kernel 5.2.6 (archlinux current default). Just to
> > mention, I tested with different module options and also two available
> > firmwares I found (rtlwifi/rtl8192eefw.bin and
> > rtlwifi/rtl8192eefw_new.bin).
> > Would you please take some time to look at the bug? I can provide any
> > additional information needed.
> > Please let me know if we can make rtl8192ee driver better.
>
> Sergey,
>
> I have plans to make some improvements on the driver, and I will investigate
> your issue.
>
> I do handle the issues on the drivers I have posted at GitHub.com under the user
> lwfinger, and I follow this list, but I do not look at the kernel bugzilla for
> Realtek wifi issues.
>
> Larry
>