Just to close off this discussion - I did some final tests on two
different board to show the problem is clearly the CPU not keeping up
All tests performed with 3 simultaneous TCP streams using iperf, 80MHz
channel width, channel 48, and antennas arranged at 120 degrees, all
systems running 18.06
It looks like Ben was right
Further investigation is showing that my Compex WPJ563 (Qualcomm
Atheros QCA9563 74Kc MIPS processor, Dragonfly Series 64KB I-Cache and
32 KB D-Cache, targeted to operate at 775MHz 128MB System Memory, 16MB
NOR Flash) is the bottleneck.
I've tested on the 1Gbps Etherne
If you are running iperf on a weak-ish AP CPU, then that will be a bottleneck.
Run iperf on external system through the AP instead. For TCP, use multiple
streams,
and first test with Ethernet mode to make sure iperf and/or CPU is not the
bottleneck
before you move to testing the WiFi interfaces
I better clarify. the polarization planes would be 60deg apart.
The vertical antennas would be physically mounted 120deg apart like a
3 blade airplane propeller.
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Ditto on channel width, max rate is cut in half with cutting channel
width in half. How do you have the antennas oriented? If all are in
the same plane or polarization, then attempting to transmit different
data on the antennas will directly compete and interfere with all the
signals on the same
A few other parameters I left out
Channel:48
Bandwidth: 80 MHz (max allowed for this compex card using
Qualcomm-Atheros QCA9880)
As this is an indoor lab bench test over 2 metres - I don't think the
channel interference should matter much (reported noise is -102 dBm)
I tried:
iw wlan0-mesh set
> Any suggestions
What have you tried in terms of channel bandwidth? Is this with 20MHz?
802.11ac goes up to 160 MHz, maybe you should try that.
Chan 48 is also pretty low in the spectrum, maybe try some of the higher
DFS channels, at least in dense city environments these tend to me much
less use
I'm trying to see what max speed can be achieved
My setup is as follow:
Board: Compex WPJ 563
Card Compex wle900vx
OS: Libremesh running openwrt 18.06
Driver: ath10k_pci :00:00.0: firmware ver 10.2.4-1.0-00033 api 5
features no-p2p,raw-mode,mfp,allows-mesh-bcast crc32 c41417d0
Firmware: firmwa
