QCA9880 3x3 80Mhz low performance

[Phyu The]

Dear Ben,

According to your test result of QCA9880 3x3, what could be the low 
performance issue at my side IPQ8064+QCA9880 with Ath10k? Is it really CPU 
related problem on WPQ864?

thanks,
Phyuthe

-----Original Message----- 
From: Ben Greear
Sent: Saturday, January 21, 2017 4:24 AM
To: Sebastian Gottschall ; Phyu The ; ath10k at lists.infradead.org
Subject: Re: QCA9880 3x3 80Mhz low performance

Hello!

We ran some more tests using our x86 based platforms with 9880 NICs and 9984 
NICs
acting as both AP and Station.  This is in an isolation chamber, wired up 
with SMA cables
and variable attenuator, in as perfect of a condition as we can manage.

First, here is LANforge acting as AP and station devices, using QCA9880 3x3 
hardware:

http://www.candelatech.com/images/data-comp-01-13-2017-144224-lf-ap.png

And with 9984 systems:

http://www.candelatech.com/images/data-comp-01-19-2017-1706-lf-ap-sta-9984.png

In case you read closely and wonder, 'Armageddon' is our modified version of 
pktgen.

Thanks,
Ben


On 01/12/2017 01:24 AM, Sebastian Gottschall wrote:
> @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
>>>>
>>>
>>
>>
>
>


-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


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