• State Resolved
  • Locked Locked
  • Replies 5 replies
  • Subscribers 40 subscribers
  • Views 1528 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Linux/WL1831MOD: WiFi Hotspot too slow after sometime

Aravinthkumar jayaprakasam
Intellectual 665 points
Part Number: WL1831MOD
Other Parts Discussed in Thread: WL1831

Tool/software: Linux

Hi All,
We are using WL1831 Wifi module on iMx6x Android Marshmallow platform. We are supporting Hotspot using the WL1831 Wifi module and testing Streaming application on the iMx6x Device. 
Here is the testing senario and the problem statement:
=========================================
=> Enabling the Wifi Hotspot on the iMx6x Android.
=> Connect the off-the-shelf Wifi camera to the iMX6x Android device.
=> Run the Streaming application on the iMX6x Android device.
 
We are able to see the streaming image on the iMX6x Android device. But after sometime the iMx6x Android device is not able to receive the streaming image. 
After getting this issue, we ran the ping command on the iMX6x Android device to some other PC and we got the slow ping response.
I would like to know what could be issue on this.?
Regards,
Aravinth
  • 0
    TI__Mastermind 20285 points

    Hi,

    It is hard to tell without seeing actual logs.

    How does the ping log look like when you say that ping response is slow?

    Is the entire system slow ot just wifi?

    Can you try capturing wifi sniffer log showing your ping test and see if there is an indication of an issue ?

    BR,

    Eyal

  • 0 in reply to Eyal Reizer
    Intellectual 665 points

    Hi Eyal,

    Thanks for your response. i have attached the iperf test result of the wifi module without using wifi camera. 

    Can you give me your feedback on this.?

    Regards,

    Aravinth

    wifi_iperf_test_log.txt 
    =====================================================================================
				UDP
=====================================================================================
*******************************************************************************
			WL1831 Module work as a UDP client
*******************************************************************************

root@sabresd_6dq:/ # iperf -c 192.168.43.228 -t100 -u                          
------------------------------------------------------------
Client connecting to 192.168.43.228, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size:  160 KByte (default)
------------------------------------------------------------
[  3] local 192.168.43.1 port 36995 connected with 192.168.43.228 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-100.0 sec  12.5 MBytes  1.05 Mbits/sec
[  3] Sent 8918 datagrams
[  3] Server Report:
[  3]  0.0-99.9 sec  12.5 MBytes  1.05 Mbits/sec  19.520 ms    1/ 8919 (0.011%)
[  3]  0.0-99.9 sec  8 datagrams received out-of-order



Phone work as UDP server:
**************************

iperf -s -u
-----------------------------------------------------------------------------
Server listening on UDP port 5001
Receiving 1470 byte datagrams
UDP buffer size: 208 KByte(default)
------------------------------------------------------------------------------
[3]local 192.168.43.228 port 5001 connected with
192.168.43.1 port 36995
[ID]Interval Transfer Bandwidth Jitter Lost/
Total Datagrams
[3]0.0-99.9 sec 12.5 MBytes 1.04 Mbits/sec 19.815ms 1/8919(0.011%)
[3]0.0-99.9 sec 8 datagrams received out-of-order


********************************************************************************
		WL1831 Module work as a UDP server
********************************************************************************

root@sabresd_6dq:/ # iperf -s -u                                               
------------------------------------------------------------
Server listening on UDP port 5001
Receiving 1470 byte datagrams
UDP buffer size:  160 KByte (default)
------------------------------------------------------------
[  3] local 192.168.43.1 port 5001 connected with 192.168.43.228 port 55280
[ ID] Interval       Transfer     Bandwidth        Jitter   Lost/Total Datagrams
[  3]  0.0-100.0 sec  12.4 MBytes  1.04 Mbits/sec   0.156 ms   47/ 8918 (0.53%)


Phone work as UDP client:
*************************

iperf -c 192.168.43.1 t100 -u                                               
------------------------------------------------------------
Client connecting to 192.168.43.1,UDP port 5001
Sending 1470 byte datagrams
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
[  3] local 192.168.43.228 port 55280 connected with 192.168.43.1 port 5001
[ ID] Interval       Transfer     Bandwidth        Jitter   Lost/Total Datagrams
[  3]  0.0-100.0 sec  12.5 MBytes   984 Kbits/sec   1.05 ms  47/ 8918 (0.53%)









=============================================================================================
				TCP
=============================================================================================
WL1831 Module work as a TCP Client:
***********************************

root@sabresd_6dq:/ # iperf -c 192.168.43.228 -t100                             
------------------------------------------------------------
Client connecting to 192.168.43.228, TCP port 5001
TCP window size: 91.9 KByte (default)
------------------------------------------------------------
[  3] local 192.168.43.1 port 53337 connected with 192.168.43.228 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-100.1 sec   475 MBytes  39.8 Mbits/sec



Phone work as TCP server:
*************************

iperf -s

----------------------------------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 91.9 KByte (default)
--------------------------------------------------------------------------------------
[  3] local 192.168.43.228 port 5001 connected with 192.168.43.1 port 53337
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-100.1 sec   475 MBytes  39.8 Mbits/sec


==========================================================================================
WL1831 Module work as a TCP server:
***********************************

root@sabresd_6dq:/ # iperf -s                                                  
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[  4] local 192.168.43.1 port 5001 connected with 192.168.43.228 port 47879
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-100.1 sec   454 MBytes  38.1 Mbits/sec



Phone work as TCP client:
*************************

iperf -c 192.168.43.1 -t100

------------------------------------------------------------
Client connecting to 192.168.43.1, TCP port 5001
TCP window size: 512KByte (default)+
------------------------------------------------------------
[  4] local 192.168.43.228 port 47879 connected with 192.168.43.1 port 5001
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-100.0 sec   454 MBytes  38.1 Mbits/sec

=====================================================================================================

  • 0 in reply to Aravinthkumar jayaprakasam
    TI__Mastermind 20285 points
    No sure what I am seeing here as you are not pushing high speed UDP traffic:
    iperf -c 192.168.43.228 -t100 -u

    try instead:
    iperf -c 192.168.43.228 -t100 -b100M -u

    to try and push 100MBPS traffic.
    I see that in TCP traffic you were seeing 40MBPS.

    BR,
    Eyal
  • 0 in reply to Eyal Reizer
    Intellectual 665 points

    Hi Eyal,

    I have attached log report of  "iperf -c 192.168.43.228 -t100 -b100M -u" your suggested command.

    Please give me your feedback on this.

    Regards,

    Aravinth

    wl1831-log-rebort.txt 
    ===============================================================================
UDP Server and Client
===============================================================================

WL1831 work as UDP Client

root@sabresd_6dq:/ # iperf -c 192.168.43.228 -t100  -u -b100m                  
-------------------------------------------------------------------------------
Client connecting to 192.168.43.228, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size:  160 KByte (default)
-------------------------------------------------------------------------------
[  3] local 192.168.43.1 port 57871 connected with 192.168.43.228 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-100.0 sec   560 MBytes  46.9 Mbits/sec
[  3] Sent 399150 datagrams
[  3] Server Report:
[  3]  0.0-100.0 sec   559 MBytes  46.9 Mbits/sec   0.279 ms  
250/399151 (0.063%)
[  3]  0.0-100.0 sec  17 datagrams received out-of-order

Phone work as UDP Server

iperf -s -u                                               
-------------------------------------------------------------------------------
Server listening on UDP port 5001
Receiving 1470 byte datagrams
UDP buffer size:  208 KByte (default)
-------------------------------------------------------------------------------
[  3] local 192.168.43.228 port 5001 connected with 192.168.43.1 port 57871
[ ID] Interval        Transfer     Bandwidth        Jitter     Lost/Total Datagrams
[  3] 0.0-100.0 sec   559 MBytes   46.9 Mbits/sec    0.279 ms  250/399151 (0.063%)
[  3] 0.0-100.0 sec  17 datagrams received out-of-order

-------------------------------------------------------------------------------
WL1831 work as UDP Server

root@sabresd_6dq:/ # iperf -s -u                                               
--------------------------------------------------------------------------------
Server listening on UDP port 5001
Receiving 1470 byte datagrams
UDP buffer size:  160 KByte (default)
------------------------------------------------------------
[  3] local 192.168.43.1 port 5001 connected with 192.168.43.228 port 42370
[ ID] Interval       Transfer     Bandwidth        Jitter   Lost/Total Datagrams
[  3]  0.0-100.0 sec   551 MBytes  46.2 Mbits/sec   1.854 ms   55/392905 (0.014%)
[  3]  0.0-100.0 sec  1 datagrams received out-of-order


Phone work as UDP Client

iperf -c 192.168.43.1 -t100  -u -b100m
-------------------------------------------------------------------------------
Client connecting to 192.168.43.1, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size:  208 KByte (default)
-------------------------------------------------------------------------------

[  3] local 192.168.43.228 port 42370 connected with 192.168.43.1 port 5001
[ ID] Interval       Transfer     Bandwidth        
[  3] 0.0-100.0 sec   551 MBytes  46.2Mbits/sec      
[  3] Server Report:
[  3]  0.0-100.0 sec   551 MBytes  46.2 Mbits/sec   1.853 ms   55/392905 (0.014%)
[  3]  0.0-100.0 sec  1 datagrams received out-of-order

  • 0 in reply to Aravinthkumar jayaprakasam
    TI__Mastermind 20285 points
    Hi Aravinth,

    In this log I see that you get 46.9 Mbits/sec of UDP traffic which is pretty good.
    What is the issue here?

    BR,
    Eyal