Throughput is very low

[Michal Kazior]

On 17 July 2014 13:35, Mamun Abu-Tair <ma86 at st-andrews.ac.uk> wrote:
> Sorry forget to CC the ath10k mailing list
>
> Begin forwarded message:
>
> From: Mamun Abu-Tair <ma86 at st-andrews.ac.uk>
> Subject: Re: Throughput is very low
> Date: 17 July 2014 12:22:46 BST
> To: Michal Kazior <michal.kazior at tieto.com>
>
> Many thanks Micjhale,
>
> On 17 Jul 2014, at 06:21, Michal Kazior <michal.kazior at tieto.com> wrote:
>
> On 16 July 2014 18:01, Bart Jooris <Bart.Jooris at intec.ugent.be> wrote:
>
> On 07/09/2014 04:22 PM, Mamun Abu-Tair wrote:
>
> [...]
>
> I have notice that Bit Rate keeps fixed 6 Mb/s . and it dose not
> responding to any commands to change it.
>
>
> While running iperf client on the station I can also retrieve the Tx bitrate
> of 6Mbps with both iwconfig and 'iw wlanX station dump'. Version of iw has
> some impact on the output too, I have version 3.15.  I don't know a tool
> which shows the right info on the transmitting node...
> But a third node which is configured as a sniffer shows Tx bitrate of
> 1299.99Mbps :-)
>
>
> The 6mbps tx rate reporting is due to firmware limitation.
>
> You might want to check
> /sys/kernel/debug/ieee80211/phyX/ath10k/fw_stats (replace phyX with
> according phy of your ath10k device) instead.
>
>
> I have checked the file and it has nothing on it. Is this normal ?!!!

If no ath10k interface is running (connected/associated) then fw_stats
is empty. Run hostapd or connect to an AP and then check the file. If
it's still empty make sure you update the driver (i.e. using
backports).


Michał