Having similar setup as before I decided to check now, how much throughput I can get from my wireless on notebook.
SETUP
RESULTS
It seems that throughput increases when notebook is running on AC, and drops when running on batteries, most probably because of the Power Saving mode.
Best distance from the Wireless router
Frequency:2.412 GHz (Channel 1)
Quality:5/5 Signal level:-36 dBm Noise level:-94 dBm
(Notebook first on batteries and then on AC)
~$ iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.13 port 5001 connected with 192.168.2.10 port 38624
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-13.7 sec 6.29 MBytes 3.84 Mbits/sec
[ 5] local 192.168.2.13 port 5001 connected with 192.168.2.10 port 52763
[ 5] 0.0-10.6 sec 22.6 MBytes 17.9 Mbits/sec
~$ iperf -c 192.168.2.13
------------------------------------------------------------
Client connecting to 192.168.2.13, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.2.10 port 38624 connected with 192.168.2.13 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.2 sec 6.29 MBytes 5.15 Mbits/sec
~$ iperf -c 192.168.2.13
------------------------------------------------------------
Client connecting to 192.168.2.13, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.2.10 port 52763 connected with 192.168.2.13 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.1 sec 22.6 MBytes 18.8 Mbits/sec
Running bidirectional test simultaneously
( notebook on AC)
~$ iperf -s -d
WARNING: option -d is not valid for server mode
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.13 port 5001 connected with 192.168.2.10 port 42265
------------------------------------------------------------
Client connecting to 192.168.2.10, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 6] local 192.168.2.13 port 35564 connected with 192.168.2.10 port 5001
Waiting for server threads to complete. Interrupt again to force quit.
[ ID] Interval Transfer Bandwidth
[ 6] 0.0-10.1 sec 8.48 MBytes 7.02 Mbits/sec
[ 4] 0.0-10.6 sec 15.2 MBytes 12.0 Mbits/sec
~$ iperf -c 192.168.2.13 -d
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.2.13, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.2.10 port 42265 connected with 192.168.2.13 port 5001
[ 4] local 192.168.2.10 port 5001 connected with 192.168.2.13 port 35564
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.3 sec 8.48 MBytes 6.88 Mbits/sec
[ 5] 0.0-10.4 sec 15.2 MBytes 12.3 Mbits/sec
( notebook on batteries)
~$ iperf -s -d
WARNING: option -d is not valid for server mode
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.13 port 5001 connected with 192.168.2.10 port 45449
------------------------------------------------------------
Client connecting to 192.168.2.10, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 6] local 192.168.2.13 port 53089 connected with 192.168.2.10 port 5001
Waiting for server threads to complete. Interrupt again to force quit.
[ ID] Interval Transfer Bandwidth
[ 6] 0.0-10.1 sec 6.28 MBytes 5.22 Mbits/sec
[ 4] 0.0-11.9 sec 3.11 MBytes 2.19 Mbits/sec
~$ iperf -c 192.168.2.13 -d
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.2.13, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.2.10 port 45449 connected with 192.168.2.13 port 5001
[ 4] local 192.168.2.10 port 5001 connected with 192.168.2.13 port 53089
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.2 sec 6.28 MBytes 5.16 Mbits/sec
[ 5] 0.0-11.7 sec 3.11 MBytes 2.24 Mbits/sec
Running Bidirectional test individually
( notebook on AC)
~$ iperf -s -r
WARNING: option -r is not valid for server mode
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.13 port 5001 connected with 192.168.2.10 port 45450
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.6 sec 24.3 MBytes 19.2 Mbits/sec
~$ iperf -c 192.168.2.13 -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.2.13, TCP port 5001
TCP window size: 46.0 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.2.10 port 45450 connected with 192.168.2.13 port 5001
Waiting for server threads to complete. Interrupt again to force quit.
[ ID] Interval Transfer Bandwidth
[ 5] 0.0-10.1 sec 24.3 MBytes 20.1 Mbits/sec
( notebook on batteries)
~$ iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.13 port 5001 connected with 192.168.2.10 port 45451
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.6 sec 7.59 MBytes 5.99 Mbits/sec
~$ iperf -c 192.168.2.13 -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.2.13, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.10 port 45451 connected with 192.168.2.13 port 5001
Waiting for server threads to complete. Interrupt again to force quit.
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.1 sec 7.59 MBytes 6.27 Mbits/sec
| TESTS | Notebook on AC | Notebook on BATTERY |
| Normal test | 17.9 Mbits/sec | 3.84 Mbits/sec |
| Bidirectional test simultaneously | 7.02 Mbits/sec / 12.0 Mbits/sec | 5.22 Mbits/sec / 2.19 Mbits/sec |
| Bidirectional test individually | 19.2 Mbits/sec | 5.99 Mbits/sec |
DETAILS
Running the server on the notebook and the client on the PC
PC running Ubuntu 10.04.2 LTS
*-network
description: Ethernet interface
product: MCP77 Ethernet
vendor: nVidia Corporation
logical name: eth0
version: a2
width: 32 bits
clock: 66MHz
configuration: broadcast=yes driver=forcedeth driverversion=0.64 ip=192.168.2.10 latency=0 maxlatency=20 mingnt=1 multicast=yes
Notebook (Lenovo G560) running Ubuntu
*-network
description: Wireless interface
product: BCM4313 802.11b/g LP-PHY
vendor: Broadcom Corporation
logical name: eth1
version: 01
width: 64 bits
clock: 33MHz
configuration: broadcast=yes driver=wl0 driverversion=5.60.48.36 ip=192.168.2.13 latency=0 multicast=yes wireless=IEEE 802.11
*-network
description: Wireless interface
product: BCM4313 802.11b/g LP-PHY
vendor: Broadcom Corporation
logical name: eth1
version: 01
width: 64 bits
clock: 33MHz
configuration: broadcast=yes driver=wl0 driverversion=5.60.48.36 ip=192.168.2.13 latency=0 multicast=yes wireless=IEEE 802.11
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