From: Stanislaw Gruszka <sgruszka@redhat.com>
To: Mathias Kresin <dev@kresin.me>
Cc: Daniel Golle <daniel@makrotopia.org>,
Enrico Mioso <mrkiko.rs@gmail.com>,
Tom Psyborg <pozega.tomislav@gmail.com>,
linux-wireless <linux-wireless@vger.kernel.org>,
Johannes Berg <johannes.berg@intel.com>,
Arnd Bergmann <arnd@arndb.de>, John Crispin <john@phrozen.org>,
Felix Fietkau <nbd@nbd.name>, Jamie Stuart <jamie@onebillion.org>
Subject: Re: ieee80211 phy0: rt2x00queue_write_tx_frame: Error - Dropping frame due to full tx queue...?
Date: Tue, 27 Mar 2018 19:18:16 +0200 [thread overview]
Message-ID: <20180327171815.GA31338@redhat.com> (raw)
In-Reply-To: <24f8f4a2-b355-a1b3-d07a-940fc1e50fcc@kresin.me>
On Tue, Mar 27, 2018 at 09:46:36AM +0200, Mathias Kresin wrote:
> > Could you test just RX AMPDU patches, i.e.
> >
> > rt2800_change_rx_ampdu_factor.patch
> > rt2800_change_rx_ampdu_density.patch
> >
> > I have somewhat positive results on RX performance on some devices
> > with those. Perhaps you could confirm that :-)
>
> This time I've done the test with HT20 only, to not annoy my neighbours.
>
> The test setup is the following:
>
> ath9k (STA) <=> (AP) o2 Box 6431 (RJ45) <=> desktop
>
> With the patches applied the bandwidth is somewhat around 10 MBit/sec lower.
> Even if I was able to reliable reproduce it, I'm not sure if it is within
> the measuring tolerance.
Ok. I think when BBP/RF is correctly programmed patches will downgrade
performance. For not well optimized devices patches might
improve things , but this is not preferred solution. For 30+ client
scenario I suggest to just disable HT (11n) in OpenWRT config.
Additionally since those errors do not happen frequently perhaps there
is possibility to create watchdog and reset the device when problems
start to happen.
FWIW: I'm running wt3020 (mt7620 device) as my home router for 3 weeks now
and do not see any errors (I have 4 client devices). Performance measured
by iperf is not good though - about 40 Mbit/s .
Regards
Stanislaw
next prev parent reply other threads:[~2018-03-27 17:18 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-11 20:51 ieee80211 phy0: rt2x00queue_write_tx_frame: Error - Dropping frame due to full tx queue...? Enrico Mioso
2017-12-13 15:20 ` Stanislaw Gruszka
2017-12-16 18:33 ` Enrico Mioso
2017-12-18 15:21 ` Stanislaw Gruszka
2017-12-19 12:27 ` Stanislaw Gruszka
2017-12-19 12:39 ` Enrico Mioso
2017-12-19 12:43 ` Enrico Mioso
2017-12-19 12:54 ` Stanislaw Gruszka
2017-12-19 13:25 ` Enrico Mioso
2017-12-20 17:49 ` Enrico Mioso
2017-12-21 14:25 ` Stanislaw Gruszka
2017-12-24 12:19 ` Enrico Mioso
2018-01-03 11:35 ` Stanislaw Gruszka
2018-01-03 14:04 ` Enrico Mioso
[not found] ` <CAKR_QVLRwAA0NJSarX46J4A8XSp8h5SuTEtSBQ4ydpEPh_-aUw@mail.gmail.com>
2018-01-22 5:45 ` Enrico Mioso
2018-01-23 13:22 ` Stanislaw Gruszka
2018-01-24 5:14 ` Enrico Mioso
2018-01-24 8:18 ` Enrico Mioso
2018-01-24 10:03 ` Stanislaw Gruszka
2018-03-01 15:30 ` Daniel Golle
2018-03-02 19:13 ` Enrico Mioso
2018-03-07 12:27 ` Stanislaw Gruszka
2018-03-07 12:29 ` Stanislaw Gruszka
2018-03-23 7:51 ` Mathias Kresin
2018-03-26 10:35 ` Stanislaw Gruszka
2018-03-27 7:46 ` Mathias Kresin
2018-03-27 17:18 ` Stanislaw Gruszka [this message]
2018-03-27 17:43 ` Daniel Golle
2018-03-28 4:14 ` Enrico Mioso
[not found] ` <CAOt++SeSQ2j1KuVkbqt77LfznXN7JV0Lx5O8d7-m2VBrz8=85g@mail.gmail.com>
2018-03-29 5:13 ` Enrico Mioso
2018-03-30 14:41 ` Enrico Mioso
2018-03-30 14:44 ` Enrico Mioso
[not found] ` <MWHPR02MB3326233159B021143D7278F5D4A10@MWHPR02MB3326.namprd02.prod.outlook.com>
2018-03-30 17:33 ` Enrico Mioso
[not found] ` <CAOt++SeLh_NxcmM=YEMQSv4y9PabS_dT7k4yTxUiqXbac-=iUQ@mail.gmail.com>
2018-04-17 13:55 ` Enrico Mioso
2018-04-17 13:56 ` Jamie Stuart
2018-04-17 13:57 ` Enrico Mioso
2018-04-17 19:42 ` Stanislaw Gruszka
[not found] ` <CAOt++SeNt=4RUTvAR1y_WjC=a-YyYa3YBSmoAmv+7uK71U+3+A@mail.gmail.com>
2018-05-28 12:50 ` Stanislaw Gruszka
2018-05-28 13:54 ` Daniel Golle
2018-08-15 11:40 ` Stanislaw Gruszka
2018-08-15 22:35 ` Daniel Golle
2018-08-16 11:01 ` Stanislaw Gruszka
[not found] ` <DM5PR02MB365669D5E9F2DE20DAE4CB7AD43E0@DM5PR02MB3656.namprd02.prod.outlook.com>
2018-08-18 16:08 ` Daniel Golle
2018-08-20 12:20 ` Stanislaw Gruszka
2018-08-24 13:02 ` Stanislaw Gruszka
2018-03-28 18:13 ` Stanislaw Gruszka
2018-03-07 15:47 ` Jamie Stuart
2018-03-07 23:30 ` Enrico Mioso
2018-03-07 23:31 ` Enrico Mioso
2018-03-08 9:39 ` Stanislaw Gruszka
2018-03-08 14:28 ` Enrico Mioso
2018-01-23 13:20 ` Stanislaw Gruszka
2017-12-26 17:20 ` Enrico Mioso
2018-01-03 11:45 ` Stanislaw Gruszka
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