Rate vs Range graphs for ath10k through attentuator.

Kalle Valo kvalo at qca.qualcomm.com
Fri May 16 05:50:46 PDT 2014

Ben Greear <greearb at candelatech.com> writes:

> Just FYI...here's a graph of a UDP upload test through an attenuator.
> The attenuator goes from 0 up to 95.5, though isolation is not perfect
> so even at highest attenuation a small bit of signal gets through.
> One interesting thing to me is that ath10k does so well at very hot
> signal strength.  ath9k runs like crap with hot signal...
> AP is another of our systems, both are using my CT firmware, my 3.14.4+
> kernel, and WLE900VX NICs.  32 stations were created and associated
> on the station machine, but only one was actively sending any significant
> data.  AP system had single active AP vdev, one station interface that was
> not connected.  Traffic flow is station send to AP, AP sends back to station
> machine on 1Gbps wired Ethernet connection.  Both systems are mobile core-i7
> CPU, 8GB RAM, etc.
> http://www.candelatech.com/examples/ath10k-rate-vs-range-udp-upload/
> Lots of graphs in the link above..the most useful ones are:
> http://www.candelatech.com/examples/ath10k-rate-vs-range-udp-upload/chart-0.png
> http://www.candelatech.com/examples/ath10k-rate-vs-range-udp-upload/chart-30.png
> The throughput is a bit spikey, possibly because I am only doing 5 second throughput
> tests.  Will run a 30-second one some day and hope that smooths out.

Cool charts. Was this over the air or with cables?

Kalle Valo

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