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:
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> >
> >
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> >
> 
> -- 
> Ben Greear <greearb at 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