Issue with ATH10K driver with 802.11 a/g mode datarates

[Sridhar Konabathini]

Hi,
   Yes, we are doing the testing in an isolation chamber (no attenuators used), antennas
are connected to RF card via SMA cable. Tx power is 5dBm. we are not suspecting Lanforge
as it gives required throughput in different WiFi setup.
  here Device Under test is T2014 based card.

Regards,
Sridhar

On Mon, 19 Sep 2016 21:33:03 -0700, Ben Greear wrote
> LANforge is going to be running a modified driver and firmware, though likely
> it is no worse at performance in this case than stock code.
> 
> What is the device under test?
> 
> And, are you in an isolation chamber, using SMA cables, attenuation, etc?
> 
> There are lots of things that can impact wifi throughput so you have to provide
> lots more details in order for anyone to understand why the throughput might be
> less than expected.
> 
> And if it is specific to LANforge, please send email to support at candelatech.com
> 
> Thanks,
> Ben
> 
> On 09/19/2016 08:46 PM, Sridhar Konabathini wrote:
> > Hi,
> >      I didnt try with ath9k drivers on the same setup.
> >
> >      we are using  WiFi capacity test tool on Lanforge to test the performance, this
will
> > generate the traffic. we are selecting the UDP protocol (packet - 1472 Bytes).
> >
> >      As per TEC spec. required data rates are given below.
> >
> >      Mode         Asso. rate         Throughput
> >
> > 802.11a            54 Mbps             28 Mbps
> >
> > 802.11g            54 Mbps             28 Mbps
> >
> >      But we are getting only 26-27Mbps, how to improve this throughput ?
> >
> >      [TEC(Telecommunication Engineering Centre, Govt. India) is a technical body,
> > prepares specification of common Telecom standards.]
> >
> > Regards,
> > Sridhar
> >
> >
> > On Mon, 19 Sep 2016 10:22:26 -0700, Adrian Chadd wrote
> >> .... and what's "TEC specification" ?
> >>
> >> -
> >> a
> >>
> >> On 19 September 2016 at 09:28, Ben Greear <greearb at candelatech.com> wrote:
> >>> Out of curiosity, does ath9k perform at the required rates in a similar
> >>> setup?
> >>>
> >>> Sending tcp, udp, or some other protocol?  How are you generating the
> >>> traffic?
> >>>
> >>> Thanks,
> >>> Ben
> >>>
> >>>
> >>> On 09/18/2016 09:26 PM, Sridhar Kondabathini wrote:
> >>>>
> >>>> Hi,
> >>>>
> >>>>       When we are testing 802.11 a/g mode throughput measurements on
> >>>> T1024RDB ( we used
> >>>> kernel-3.12; ath10k drivers backported from 4.4;hostapd 2.5 for 11AC
> >>>> support), then we
> >>>> are getting 26-27 Mbps , which is not meeting the required TEC
> >>>> specification (which is
> >>>> ~28 Mbps). How can we increase the throughput in these modes.
> >>>>
> >>>>        Can you please help on this.
> >>>>
> >>>>
> >>>>
> >>>> Regards,
> >>>>
> >>>> Sridhar Kondabathini,
> >>>> Research engineer,
> >>>> PSG lab,
> >>>> Center for Development Of Telematics
> >>>> 9480484821.
> >>>>
> >>>>
> >>>>
> >>>>
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> >>>>
> >>>>
> >>>> _______________________________________________
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> >>>>
> >>>
> >>>
> >>> --
> >>> Ben Greear <greearb at candelatech.com>
> >>> Candela Technologies Inc  http://www.candelatech.com
> >>>
> >>>
> >>>
> >>> _______________________________________________
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> >>
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> >> http://lists.infradead.org/mailman/listinfo/ath10k
> >
> >
> > Regards,
> >
> > Sridhar Kondabathini,
> > Research engineer,
> > PSG lab,
> > Center for Development Of Telematics
> > 9480484821.
> >
> >
> >
> >
> > Disclaimer:
> > ----------
> > This email and any files transmitted with it are confidential and intended solely
> > for
> > the use of the individual or entity to whom they are addressed.  If you are not the
> > intended recipient you are notified that disclosing, copying, distributing or taking
> > any
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> > sender does not a
> >
> 
> -- 
> Ben Greear <greearb at candelatech.com>
> Candela Technologies Inc  http://www.candelatech.com
> 
> _______________________________________________
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Regards,

Sridhar Kondabathini,
Research engineer,
PSG lab,
Center for Development Of Telematics
9480484821.




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