QCA9880 3x3 80Mhz low performance

[Sebastian Gottschall]

@ben greear. it cannot be cpu related. the ipq8064 has 1.2 ghz and is a 
very fast arm core. the platform handles 9984 with much higher speed.
i got notice of the same issue reported by people on various cpu platforms.

Am 12.01.2017 um 09:15 schrieb Phyu The:
> Dear Ben,
>
> Thanks for your reply and suggestion.
>
> I have tried as your suggestion to test IPQ8064+QCA9880 with Ath10k CT 
> firmware/driver to run throughput UDP/TCP. Unfortunately, I could not 
> be able to see throughput improvement. Could you please suggest what 
> may cause low throughput?
>
> thanks,
> Phyuthe
>
> -----Original Message----- From: Ben Greear
> Sent: Thursday, January 12, 2017 12:59 AM
> To: Phyu The ; ath10k at lists.infradead.org
> Subject: Re: QCA9880 3x3 80Mhz low performance
>
> We have not done a lot of testing in AP mode, but when using 9880 3x3 
> compex NICs
> in our 2U rackmounts (high end Intel E5 processors), and with CT 
> firmware/drivers,
> we see near 950Mbps UDP download in station mode.  I think we were a 
> bit slower in
> AP mode, but not that much.
>
> Are you testing TCP or UDP traffic?
>
> http://www.candelatech.com/images/data-comp-07-20-2016-1147-with-labels.png 
>
>
> Have you tried normal STA/AP mode instead of WDS?
>
> Maybe you are CPU bound on your platform?
>
> Thanks,
> Ben
>
> On 01/10/2017 05:09 PM, Phyu The wrote:
>> Dear Ben,
>>
>> I configured AP_WDS and Sta_WDS mode, channel 149, 11ac, 3x3, 80MHz 
>> and without encryption. I used 2 RF boxes with 3 adjustable 
>> attenuators running throughput
>> by Ixchairot to get best performance. However, throughput seems 
>> limited to 640Mbps. Kindly see attached for your reference for more 
>> details.
>>
>> thanks,
>> Phyuthe
>>
>> -----Original Message----- From: Ben Greear
>> Sent: Tuesday, January 10, 2017 10:37 PM
>> To: Phyu The ; ath10k at lists.infradead.org
>> Subject: Re: QCA9880 3x3 80Mhz low performance
>>
>> You should provide a lot more information about how you configured 
>> and tested the system,
>> including traffic generator and RF environment, etc.
>>
>> Thanks,
>> Ben
>>
>> On 01/09/2017 10:19 PM, Phyu The wrote:
>>> Dear Sir,
>>>
>>> I tested performance throughput test used WPQ864 + QCA9880 11ac 
>>> 80MHz is 640Mbps that is very low since theoretical data rate is 
>>> 1300Mbps. It should be at
>>> least 866Mbps. Could you please suggest me how to get better 
>>> performance?
>>>
>>> thanks,
>>> Phyuthe
>>>
>>> _______________________________________________
>>> ath10k mailing list
>>> ath10k at lists.infradead.org
>>> http://lists.infradead.org/mailman/listinfo/ath10k
>>>
>>
>
>


-- 
Mit freundlichen Grüssen / Regards

Sebastian Gottschall / CTO

NewMedia-NET GmbH - DD-WRT
Firmensitz:  Berliner Ring 101, 64625 Bensheim
Registergericht: Amtsgericht Darmstadt, HRB 25473
Geschäftsführer: Peter Steinhäuser, Christian Scheele
http://www.dd-wrt.com
email: s.gottschall at dd-wrt.com
Tel.: +496251-582650 / Fax: +496251-5826565