What Alix boards and radios are you currently using for these tests ?
Scott
On Wed, Mar 23, 2011 at 4:55 AM, Roberto Riggio <roberto.riggio@create-net.org> wrote:
I've committed a few changes to the rate control implementation. I've tested the network
over a one hop path with two ALIX router using two 11a cards (2.4GHz are too crowed in
our buildings).
I'm attaching the results obtained with iperf. There is a significant improvement however the
performances are still 4/5 mbps lower than what I could obtain from a master/client connection.
At this point the only way to improve performance is to run wing using a profiler.
R.
root@Wing:~# iperf -t 60 -i 1 -c 6.35.170.152
------------------------------------------------------------
Client connecting to 6.35.170.152, TCP port 5001[ 3] local 6.35.170.123 port 59636 connected with 6.35.170.152 port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 1.0- 2.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 3] 2.0- 3.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 3.0- 4.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 4.0- 5.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 5.0- 6.0 sec 3.13 MBytes 26.2 Mbits/sec
[ 3] 6.0- 7.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 7.0- 8.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 8.0- 9.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 9.0-10.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 10.0-11.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 11.0-12.0 sec 2.63 MBytes 22.0 Mbits/sec
[ 3] 12.0-13.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 13.0-14.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 14.0-15.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 15.0-16.0 sec 3.00 MBytes 25.2 Mbits/sec
[ 3] 16.0-17.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 3] 17.0-18.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 18.0-19.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 19.0-20.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 20.0-21.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 21.0-22.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 22.0-23.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 23.0-24.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 24.0-25.0 sec 3.13 MBytes 26.2 Mbits/sec
[ 3] 25.0-26.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 26.0-27.0 sec 3.00 MBytes 25.2 Mbits/sec
[ 3] 27.0-28.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 28.0-29.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 29.0-30.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 30.0-31.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 31.0-32.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 32.0-33.0 sec 2.63 MBytes 22.0 Mbits/sec
[ 3] 33.0-34.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 34.0-35.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 35.0-36.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 36.0-37.0 sec 2.88 MBytes 24.1 Mbits/sec
[ 3] 37.0-38.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 38.0-39.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 39.0-40.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 40.0-41.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 41.0-42.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 42.0-43.0 sec 3.00 MBytes 25.2 Mbits/sec
[ 3] 43.0-44.0 sec 3.00 MBytes 25.2 Mbits/sec
[ 3] 44.0-45.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 45.0-46.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 46.0-47.0 sec 3.13 MBytes 26.2 Mbits/sec
[ 3] 47.0-48.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 48.0-49.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 49.0-50.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 50.0-51.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 51.0-52.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 52.0-53.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 53.0-54.0 sec 2.63 MBytes 22.0 Mbits/sec
[ 3] 54.0-55.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 55.0-56.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 56.0-57.0 sec 3.38 MBytes 28.3 Mbits/sec
[ 3] 57.0-58.0 sec 3.00 MBytes 25.2 Mbits/sec
[ 3] 58.0-59.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 59.0-60.0 sec 3.25 MBytes 27.3 Mbits/sec
[ 3] 0.0-60.1 sec 192 MBytes 26.8 Mbits/sec
Il 16/02/2011 15:37, le thanh son ha scritto:
Thanks a lot for your email.
I have tried to make new build from scratch for ALIX board (svn co from http://gforge.create-net.org/svn/wing and compile for ATH9K, AR9220 radio board)
I have set up the wing-mesh and tried the performance.
The result is that ping is OK, but when I used iperf to measure throughput, it shows just less than 10 Mbps with TCP ( with minstrel rate control and fcfs)
root@Wing:/# iperf -c 6.111.9.55 -t 60 -i 10
------------------------------------------------------------
Client connecting to 6.111.9.55, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 3] local 6.111.66.67 port 50312 connected with 6.111.9.55 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 8.25 MBytes 6.92 Mbits/sec
[ 3] 10.0-20.0 sec 11.1 MBytes 9.33 Mbits/sec
[ 3] 20.0-30.0 sec 11.9 MBytes 9.96 Mbits/sec
[ 3] 30.0-40.0 sec 11.1 MBytes 9.33 Mbits/sec
[ 3] 40.0-50.0 sec 11.8 MBytes 9.86 Mbits/sec
[ 3] 50.0-60.0 sec 12.1 MBytes 10.2 Mbits/sec
[ 3] 0.0-60.4 sec 66.4 MBytes 9.22 Mbits/sec
root@Wing:/#
Two ALIX boards are just 1/2 m distance, so the signal is quite good
The questions are:
1. What can maximum throughput rate expect ? How does throughput achieve at your experiment for Point-to-Point scenario ?
2. Where can I set the channels and bit rate ? where can I see the received signal strength ? I am sorry for ask this, as the wing-mesh is different compared to normal ATH9K AP-STA scenario.
My config files on ALIXs are:
--------------------------------------------
root@Wing:/etc/config# cat wireless
config wifi-device radio0
option type mac80211
option channel 36
option macaddr
option hwmode 11na
option htmode HT20
list ht_capab SHORT-GI-40
list ht_capab TX-STBC
list ht_capab RX-STBC1
list ht_capab DSSS_CCK-40
# REMOVE THIS LINE TO ENABLE WIFI:
#option disabled 1
#config wifi-iface
# option device radio0
# option network lan
# option mode ap
# option ssid test1
# option encryption none
config wifi-iface
option device radio0
#option network lan
option mode monitor
option ssid mesh2
option encryption none
root@Wing:/etc/config# cat network
config 'interface' 'loopback'
option 'ifname' 'lo'
option 'proto' 'static'
option 'ipaddr' '127.0.0.1'
option 'netmask' '255.0.0.0'
config 'interface' 'lan'
option 'ifname' 'eth0'
option 'type' 'bridge'
option 'proto' 'static'
option 'ipaddr' '10.50.0.55'
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Wing@create-net-ml.org
http://diana.create-net-ml.org/cgi-bin/mailman/listinfo/wing
--
--------------------------------------------------------
Roberto Riggio, Ph.D.
CREATE-NET
Network& Security Solutions for Pervasive Computing Systems (iNSPIRE)
Senior Researcher
Via alla Cascata 56/D - 38123 Povo Trento (Italy)
e-mail: roberto.riggio@create-net.org
Tel: (+39) 0461 408400 - interno/extension 708
Fax: (+39) 0461 421157
www.create-net.org/~rriggio
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