Throughput drop with ath10k latest driver and firmware-5.bin_10.2.4.70.66

Throughput drop with ath10k latest driver and firmware-5.bin_10.2.4.70.66

[KAVITA MATHUR]

Hi,
 
In my AP , there are two radios, one ath9k based module WLE200NX and second ath10k based
WLE600VX.

I configured both the radios as AP in IEEE 802.11a 40 MHz HT mode and performed
throughput test.

Measured throughput with ath9k is 164Mbps while with ath10k it is 137Mbps. I could not
understand the reason of this drop(27 Mbps)? 

My test setup was inside RF-Shield. There was no interference and system was associated
at 300Mbps in both cases.

ath10k driver was taken from ath10k git and firmware version is
firmware-5.bin_10.2.4.70.66. 
ath9k drives was taken from stable backport release backport-4.4.2-1.

kernel version : 3.12
openwrt version : Chaos Calmer 15.05.0

Please suggest me how can I increase the throughput of my AP. 




Thanks & Regards,
कविता माथुर Kavita Mathur 
वरिष्ठ अनुसंधान अभियंता  Senior Research Engineer 
सी-डॉट                      C-DOT
इलैक्ट्रॉनिक्स सिटी फेज़ I         Electronics City Phase I
होसूर रोड, बेंगलूरु               Hosur Road, Bengaluru – 560100
फोन  Ph 080-28529896
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This email and any files transmitted with it


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Re: Throughput drop with ath10k latest driver and firmware-5.bin_10.2.4.70.66

[Ben Greear]

On 10/26/2017 04:20 AM, KAVITA MATHUR wrote:
> Hi,
>
> In my AP , there are two radios, one ath9k based module WLE200NX and second ath10k based
> WLE600VX.
>
> I configured both the radios as AP in IEEE 802.11a 40 MHz HT mode and performed
> throughput test.
>
> Measured throughput with ath9k is 164Mbps while with ath10k it is 137Mbps. I could not
> understand the reason of this drop(27 Mbps)?
>
> My test setup was inside RF-Shield. There was no interference and system was associated
> at 300Mbps in both cases.
>
> ath10k driver was taken from ath10k git and firmware version is
> firmware-5.bin_10.2.4.70.66.
> ath9k drives was taken from stable backport release backport-4.4.2-1.
>
> kernel version : 3.12
> openwrt version : Chaos Calmer 15.05.0
>
> Please suggest me how can I increase the throughput of my AP.

Does it work any better with different firmware/software, or is ath10k just always slower
for you?

How much attenuation are you using?

Thanks,
Ben

>
>
>
>
> Thanks & Regards,
> कविता माथुर Kavita Mathur
> वरिष्ठ अनुसंधान अभियंता  Senior Research Engineer
> सी-डॉट                      C-DOT
> इलैक्ट्रॉनिक्स सिटी फेज़ I         Electronics City Phase I
> होसूर रोड, बेंगलूरु               Hosur Road, Bengaluru – 560100
> फोन  Ph 080-28529896
> Disclaimer:
> ----------
> This email and any files transmitted with it
>
>
> _______________________________________________
> ath10k mailing list
> ath10k@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/ath10k
>

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

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Re: Throughput drop with ath10k latest driver and firmware-5.bin_10.2.4.70.66

[KAVITA MATHUR]

On Thu, 26 Oct 2017 07:48:18 -0700, Ben Greear wrote
> On 10/26/2017 04:20 AM, KAVITA MATHUR wrote:
> > Hi,
> >
> > In my AP , there are two radios, one ath9k based module WLE200NX and second ath10k based
> > WLE600VX.
> >
> > I configured both the radios as AP in IEEE 802.11a 40 MHz HT mode and performed
> > throughput test.
> >
> > Measured throughput with ath9k is 164Mbps while with ath10k it is 137Mbps. I could not
> > understand the reason of this drop(27 Mbps)?
> >
> > My test setup was inside RF-Shield. There was no interference and system was associated
> > at 300Mbps in both cases.
> >
> > ath10k driver was taken from ath10k git and firmware version is
> > firmware-5.bin_10.2.4.70.66.
> > ath9k drives was taken from stable backport release backport-4.4.2-1.
> >
> > kernel version : 3.12
> > openwrt version : Chaos Calmer 15.05.0
> >
> > Please suggest me how can I increase the throughput of my AP.
> 
> Does it work any better with different firmware/software, or is ath10k just 
> always slower for you?

Yes. Measured throughput in the same configuration was 193 Mbps when used ath10k driver
from backport stable release backport-4.4.2-1 and firmware version
firmware-5.bin_10.2.4.70.63-2. But this version is not stable for ac mode and it does
not support MESH. Please suggest appropriate ath10k driver version and firmware. 

> 
> How much attenuation are you using?
Received Signal strength is -38 dBm and tx power is 5dBm in all these testcases.

> Thanks,
> Ben
> 
> >
> >
> >
> >
> > Thanks & Regards,
> > कविता माथुर Kavita Mathur
> > वरिष्ठ अनुसंधान अभियंता  Senior Research Engineer
> > सी-डॉट                      C-DOT
> > इलैक्ट्रॉनिक्स सिटी फेज़ I         Electronics City Phase I
> > होसूर रोड, बेंगलूरु               Hosur Road, Bengaluru – 560100
> > फोन  Ph 080-28529896
> > Disclaimer:
> > ----------
> > This email and any files transmitted with it
> >
> >
> > _______________________________________________
> > ath10k mailing list
> > ath10k@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/ath10k
> >
> 
> -- 
> Ben Greear <greearb@candelatech.com>
> Candela Technologies Inc  http://www.candelatech.com


Thanks & Regards,
कविता माथुर Kavita Mathur 
वरिष्ठ अनुसंधान अभियंता  Senior Research Engineer 
सी-डॉट                      C-DOT
इलैक्ट्रॉनिक्स सिटी फेज़ I         Electronics City Phase I
होसूर रोड, बेंगलूरु               Hosur Road, Bengaluru – 560100
फोन  Ph 080-28529896
Disclaimer:
----------
This email and any files transmitted with it


_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

Re: Throughput drop with ath10k latest driver and firmware-5.bin_10.2.4.70.66

[Ben Greear]

On 10/27/2017 01:25 AM, KAVITA MATHUR wrote:
> On Thu, 26 Oct 2017 07:48:18 -0700, Ben Greear wrote
>> On 10/26/2017 04:20 AM, KAVITA MATHUR wrote:
>>> Hi,
>>>
>>> In my AP , there are two radios, one ath9k based module WLE200NX and second ath10k based
>>> WLE600VX.
>>>
>>> I configured both the radios as AP in IEEE 802.11a 40 MHz HT mode and performed
>>> throughput test.
>>>
>>> Measured throughput with ath9k is 164Mbps while with ath10k it is 137Mbps. I could not
>>> understand the reason of this drop(27 Mbps)?
>>>
>>> My test setup was inside RF-Shield. There was no interference and system was associated
>>> at 300Mbps in both cases.
>>>
>>> ath10k driver was taken from ath10k git and firmware version is
>>> firmware-5.bin_10.2.4.70.66.
>>> ath9k drives was taken from stable backport release backport-4.4.2-1.
>>>
>>> kernel version : 3.12
>>> openwrt version : Chaos Calmer 15.05.0
>>>
>>> Please suggest me how can I increase the throughput of my AP.
>>
>> Does it work any better with different firmware/software, or is ath10k just
>> always slower for you?
>
> Yes. Measured throughput in the same configuration was 193 Mbps when used ath10k driver
> from backport stable release backport-4.4.2-1 and firmware version
> firmware-5.bin_10.2.4.70.63-2. But this version is not stable for ac mode and it does
> not support MESH. Please suggest appropriate ath10k driver version and firmware.

I would try just changing the firmware and see if it is the firmware or the
driver change that causes decreased performance.

>
>>
>> How much attenuation are you using?
> Received Signal strength is -38 dBm and tx power is 5dBm in all these testcases.

That would seem to be a good RSSI, so attenuation is probably not the issue.

Thanks,
Ben


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


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