No, it doesn't seem to.
=========================================================
$ iwconfig
virbr0-nic no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"VM851079-2G"
Mode:Managed Frequency:2.462 GHz Access Point: 10:0D:7F:18:C4:80
Bit Rate=130 Mb/s Tx-Power=16 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=70/70 Signal level=-30 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:56 Missed beacon:0
virbr0 no wireless extensions.
lo no wireless extensions.
======================================================
$ iperf -c 192.168.0.102
------------------------------------------------------------
Client connecting to 192.168.0.102, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.0.3 port 39692 connected with 192.168.0.102 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.1 sec 21.2 MBytes 17.6 Mbits/sec
========================================================
$ sudo iwconfig wlan0 power off
[sudo] password for :
========================================================
$ iwconfig
virbr0-nic no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"VM851079-2G"
Mode:Managed Frequency:2.462 GHz Access Point: 10:0D:7F:18:C4:80
Bit Rate=130 Mb/s Tx-Power=16 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-30 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:107 Missed beacon:0
virbr0 no wireless extensions.
lo no wireless extensions.
=======================================================
$ iperf -c 192.168.0.102
------------------------------------------------------------
Client connecting to 192.168.0.102, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.0.3 port 39693 connected with 192.168.0.102 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.1 sec 13.1 MBytes 10.9 Mbits/sec
================================================
[Tried again immediately afterwards, without changing anything]
$ iperf -c 192.168.0.102
------------------------------------------------------------
Client connecting to 192.168.0.102, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.0.3 port 39694 connected with 192.168.0.102 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.1 sec 27.4 MBytes 22.8 Mbits/sec
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1450755
Title:
Intel Wireless-N 2230 4x faster in Windows 7 than 15.04 (iwlwifi)
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