[FS#487] VGV7510KW22 / o2 Box 6431 / RT3062F: Very poor Wi-Fi performance

LEDE Bugs lede-bugs at lists.infradead.org
Thu Feb 9 05:54:24 PST 2017


A new Flyspray task has been opened.  Details are below. 

User who did this - bugreporter (bugreporter) 

Attached to Project - LEDE Project
Summary - VGV7510KW22 / o2 Box 6431 / RT3062F: Very poor Wi-Fi performance
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - All
Due in Version - Undecided
Due Date - Undecided
Details - Actual Wi-Fi performance is abnormally poor and unusually variable, no matter the settings (mode, channels, encryption).

These tests were carried out in quick succession while the LuCI web interface showed a signal strength of -46 - -50 dBm:
[localhost ~]$ iperf3 -c 192.168.1.1
Connecting to host 192.168.1.1, port 5201
[  4] local 192.168.1.171 port 42922 connected to 192.168.1.1 port 5201
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[  4]   0.00-1.00   sec  1.36 MBytes  11.4 Mbits/sec    0   14.1 KBytes       
[  4]   1.00-2.00   sec   964 KBytes  7.90 Mbits/sec    5   11.3 KBytes       
[  4]   2.00-3.00   sec   816 KBytes  6.68 Mbits/sec    4   4.24 KBytes       
[  4]   3.00-4.00   sec   979 KBytes  8.02 Mbits/sec    5   9.90 KBytes       
[  4]   4.00-5.00   sec  1.38 MBytes  11.6 Mbits/sec    0   11.3 KBytes       
[  4]   5.00-6.00   sec  1.24 MBytes  10.4 Mbits/sec    1   9.90 KBytes       
[  4]   6.00-7.00   sec   943 KBytes  7.72 Mbits/sec    2   7.07 KBytes       
[  4]   7.00-8.00   sec  1024 KBytes  8.39 Mbits/sec    7   8.48 KBytes       
[  4]   8.00-9.00   sec  1.11 MBytes  9.29 Mbits/sec    1   9.90 KBytes       
[  4]   9.00-10.00  sec  1.41 MBytes  11.8 Mbits/sec    0   11.3 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec  11.1 MBytes  9.32 Mbits/sec   25             sender
[  4]   0.00-10.00  sec  11.1 MBytes  9.30 Mbits/sec                  receiver

iperf Done.
[localhost ~]$ iperf3 -c 192.168.1.1
Connecting to host 192.168.1.1, port 5201
[  4] local 192.168.1.171 port 42954 connected to 192.168.1.1 port 5201
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[  4]   0.00-1.00   sec   187 KBytes  1.53 Mbits/sec    3   9.90 KBytes       
[  4]   1.00-2.00   sec   638 KBytes  5.22 Mbits/sec    0   11.3 KBytes       
[  4]   2.00-3.00   sec   561 KBytes  4.60 Mbits/sec    0   14.1 KBytes       
[  4]   3.00-4.00   sec   417 KBytes  3.42 Mbits/sec    0   14.1 KBytes       
[  4]   4.00-5.00   sec   307 KBytes  2.51 Mbits/sec    4   8.48 KBytes       
[  4]   5.00-6.00   sec   370 KBytes  3.04 Mbits/sec    2   8.48 KBytes       
[  4]   6.00-7.00   sec   365 KBytes  2.99 Mbits/sec    1   8.48 KBytes       
[  4]   7.00-8.00   sec   281 KBytes  2.30 Mbits/sec    2   1.41 KBytes       
[  4]   8.00-9.00   sec   204 KBytes  1.67 Mbits/sec    8   8.48 KBytes       
[  4]   9.00-10.00  sec   344 KBytes  2.81 Mbits/sec    2   8.48 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec  3.59 MBytes  3.01 Mbits/sec   22             sender
[  4]   0.00-10.00  sec  3.56 MBytes  2.99 Mbits/sec                  receiver

iperf Done.
[localhost ~]$ iperf3 -c 192.168.1.1
Connecting to host 192.168.1.1, port 5201
[  4] local 192.168.1.171 port 42960 connected to 192.168.1.1 port 5201
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[  4]   0.00-1.00   sec   259 KBytes  2.12 Mbits/sec    2   9.90 KBytes       
[  4]   1.00-2.00   sec   923 KBytes  7.57 Mbits/sec    2   11.3 KBytes       
[  4]   2.00-3.00   sec  1.08 MBytes  9.06 Mbits/sec    0   11.3 KBytes       
[  4]   3.00-4.00   sec  1.34 MBytes  11.2 Mbits/sec    2   9.90 KBytes       
[  4]   4.00-5.00   sec   652 KBytes  5.34 Mbits/sec    8   4.24 KBytes       
[  4]   5.00-6.00   sec  1.31 MBytes  11.0 Mbits/sec    1   11.3 KBytes       
[  4]   6.00-7.00   sec  1.37 MBytes  11.5 Mbits/sec    0   15.6 KBytes       
[  4]   7.00-8.00   sec  1.24 MBytes  10.4 Mbits/sec    1   12.7 KBytes       
[  4]   8.00-9.00   sec   683 KBytes  5.59 Mbits/sec    8   9.90 KBytes       
[  4]   9.00-10.00  sec  1.16 MBytes  9.72 Mbits/sec    2   7.07 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec  9.96 MBytes  8.35 Mbits/sec   26             sender
[  4]   0.00-10.00  sec  9.93 MBytes  8.33 Mbits/sec                  receiver

iperf Done.

Confirmed with 17.01.0-rc1, 17.01.0-rc2, SNAPSHOT r3350-aab344d (all NOR images) and different client machines.


On a side note, ethernet performance is also diminished:
[localhost ~]$ iperf3 -c 192.168.1.1
Connecting to host 192.168.1.1, port 5201
[  4] local 192.168.1.161 port 57264 connected to 192.168.1.1 port 5201
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[  4]   0.00-1.00   sec  9.70 MBytes  81.3 Mbits/sec    0    215 KBytes       
[  4]   1.00-2.00   sec  8.96 MBytes  75.2 Mbits/sec    0    215 KBytes       
[  4]   2.00-3.00   sec  9.37 MBytes  78.6 Mbits/sec    4    156 KBytes       
[  4]   3.00-4.00   sec  10.3 MBytes  86.6 Mbits/sec    6    106 KBytes       
[  4]   4.00-5.00   sec  10.4 MBytes  87.0 Mbits/sec    0    161 KBytes       
[  4]   5.00-6.00   sec  8.88 MBytes  74.5 Mbits/sec    2    156 KBytes       
[  4]   6.00-7.00   sec  9.01 MBytes  75.6 Mbits/sec    2    143 KBytes       
[  4]   7.00-8.00   sec  9.47 MBytes  79.5 Mbits/sec    8    140 KBytes       
[  4]   8.00-9.00   sec  10.3 MBytes  86.6 Mbits/sec    6    141 KBytes       
[  4]   9.00-10.00  sec  10.4 MBytes  87.3 Mbits/sec    4    144 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec  96.8 MBytes  81.2 Mbits/sec   32             sender
[  4]   0.00-10.00  sec  96.5 MBytes  80.9 Mbits/sec                  receiver

iperf Done.


More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=487



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