Comparing
- 148f:3070 Ralink Technology, Corp. RT2870/RT3070 Wireless Adapter
& rt2800usb.ko & Co. / rt2870.bin
- 0bda:8171 Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter
& r8712u.ko / rtl8712u.bin
Realtek RTL8188SU easily outperformes Ralink RT3070
in managed i.e. Station (STA) infrastructure mode, despite
...
r8712u: module is from the staging directory, the quality is unknown, you have
been warned.
r8712u: Staging version
...
With the very same Access Point - AP1.
In this test, Realtek is the king of the road.
- Net draft
RT3070/RTL8188SU Wi-Fi <~20cm LOS~> AP1 Wi-Fi <-> 100Mbit Ethernet switch <->
Ethernet
°°°°°°°°°°°°°°°
$ iperf -s -i 1
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.5 port 5001 connected with 192.168.2.43 port 43008
[ ID] Interval Transfer Bandwidth
[ 4] 0.0- 1.0 sec 11.0 MBytes 92.3 Mbits/sec
[ 4] 1.0- 2.0 sec 11.2 MBytes 94.0 Mbits/sec
[ 4] 2.0- 3.0 sec 11.2 MBytes 94.2 Mbits/sec
[ 4] 3.0- 4.0 sec 10.0 MBytes 83.9 Mbits/sec
[ 4] 4.0- 5.0 sec 11.2 MBytes 94.1 Mbits/sec
[ 4] 5.0- 6.0 sec 11.2 MBytes 94.2 Mbits/sec
[ 4] 6.0- 7.0 sec 11.2 MBytes 94.2 Mbits/sec
[ 4] 7.0- 8.0 sec 11.2 MBytes 94.2 Mbits/sec
[ 4] 8.0- 9.0 sec 11.2 MBytes 94.2 Mbits/sec
[ 4] 9.0-10.0 sec 11.2 MBytes 94.1 Mbits/sec
[ 4] 0.0-10.1 sec 112 MBytes 92.9 Mbits/sec
°°°°°°°°°°°°°°°°°°°°°°°°°°°
$ iperf -c 192.168.2.5 -i 1
------------------------------------------------------------
Client connecting to 192.168.2.5, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.2.43 port 43008 connected with 192.168.2.5 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 11.5 MBytes 96.5 Mbits/sec
[ 3] 1.0- 2.0 sec 11.2 MBytes 94.4 Mbits/sec
[ 3] 2.0- 3.0 sec 11.4 MBytes 95.4 Mbits/sec
[ 3] 3.0- 4.0 sec 9.88 MBytes 82.8 Mbits/sec
[ 3] 4.0- 5.0 sec 11.2 MBytes 94.4 Mbits/sec
[ 3] 5.0- 6.0 sec 11.1 MBytes 93.3 Mbits/sec
[ 3] 6.0- 7.0 sec 11.2 MBytes 94.4 Mbits/sec
[ 3] 7.0- 8.0 sec 11.4 MBytes 95.4 Mbits/sec
[ 3] 8.0- 9.0 sec 11.1 MBytes 93.3 Mbits/sec
[ 3] 9.0-10.0 sec 11.4 MBytes 95.4 Mbits/sec
[ 3] 0.0-10.0 sec 112 MBytes 93.5 Mbits/sec
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
$ iperf -s -i 1
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.43 port 5001 connected with 192.168.2.5 port 47065
[ ID] Interval Transfer Bandwidth
[ 4] 0.0- 1.0 sec 9.34 MBytes 78.3 Mbits/sec
[ 4] 1.0- 2.0 sec 10.5 MBytes 88.5 Mbits/sec
[ 4] 2.0- 3.0 sec 11.0 MBytes 92.6 Mbits/sec
[ 4] 3.0- 4.0 sec 11.0 MBytes 92.4 Mbits/sec
[ 4] 4.0- 5.0 sec 11.1 MBytes 93.3 Mbits/sec
[ 4] 5.0- 6.0 sec 10.9 MBytes 91.7 Mbits/sec
[ 4] 6.0- 7.0 sec 11.2 MBytes 93.9 Mbits/sec
[ 4] 7.0- 8.0 sec 11.2 MBytes 93.6 Mbits/sec
[ 4] 8.0- 9.0 sec 11.0 MBytes 92.7 Mbits/sec
[ 4] 9.0-10.0 sec 11.2 MBytes 93.6 Mbits/sec
[ 4] 0.0-10.1 sec 110 MBytes 91.1 Mbits/sec
°°°°°°°°°°°°°°°°°°°°°°°°°°°°
$ iperf -c 192.168.2.43 -i 1
------------------------------------------------------------
Client connecting to 192.168.2.43, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.2.5 port 47065 connected with 192.168.2.43 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 10.0 MBytes 83.9 Mbits/sec
[ 3] 1.0- 2.0 sec 10.4 MBytes 87.0 Mbits/sec
[ 3] 2.0- 3.0 sec 11.5 MBytes 96.5 Mbits/sec
[ 3] 3.0- 4.0 sec 11.2 MBytes 94.4 Mbits/sec
[ 3] 4.0- 5.0 sec 10.8 MBytes 90.2 Mbits/sec
[ 3] 5.0- 6.0 sec 11.2 MBytes 94.4 Mbits/sec
[ 3] 6.0- 7.0 sec 11.4 MBytes 95.4 Mbits/sec
[ 3] 7.0- 8.0 sec 11.0 MBytes 92.3 Mbits/sec
[ 3] 8.0- 9.0 sec 11.2 MBytes 94.4 Mbits/sec
[ 3] 9.0-10.0 sec 11.1 MBytes 93.3 Mbits/sec
[ 3] 0.0-10.0 sec 110 MBytes 91.9 Mbits/sec
°°°°°°°°°°°°°°°°°°°°°
# iwconfig wlp0s4f1u3
wlp0s4f1u3 IEEE 802.11bgn ESSID:"AP1" Nickname:"rtl_wifi"
Mode:Managed Frequency:2.437 GHz Access Point: 00:01:02:03:04:05
Bit Rate:150 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Encryption key:****-****-****-****-****-****-****-**** Security
mode:open
Power Management:off
Link Quality=100/100 Signal level=100/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
$ dmesg -t | grep 'r8712u\|2-3'
usb 2-3: new high-speed USB device number 3 using ehci-pci
usb 2-3: New USB device found, idVendor=0bda, idProduct=8171
usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 2-3: Product: RTL8188S WLAN Adapter
usb 2-3: Manufacturer: Manufacturer Realtek
usb 2-3: SerialNumber: 00e04c000001
r8712u: module is from the staging directory, the quality is unknown, you have
been warned.
r8712u: Staging version
r8712u: register rtl8712_netdev_ops to netdev_ops
usb 2-3: r8712u: USB_SPEED_HIGH with 4 endpoints
usb 2-3: r8712u: Boot from EFUSE: Autoload OK
usb 2-3: r8712u: CustomerID = 0x0000
usb 2-3: r8712u: MAC Address from efuse = 00:01:05:09:0b:0d
usb 2-3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
usbcore: registered new interface driver r8712u
r8712u 2-3:1.0 wlp0s4f1u3: renamed from wlan0
r8712u 2-3:1.0 wlp0s4f1u3: 1 RCR=0x153f00e
r8712u 2-3:1.0 wlp0s4f1u3: 2 RCR=0x553f00e
°°°°°°°°°°°°°°°°°°°
$ modinfo r8712u -n
/lib/modules/3.17.2-200.fc20.x86_64/kernel/drivers/staging/rtl8712/r8712u.ko.xz
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
However, it is important to note,
despite the relatively low throughput
- 148f:3070 Ralink Technology, Corp. RT2870/RT3070 Wireless Adapter
& rt2800usb.ko & Co. / rt2870.bin
is the combination full featured
http://wireless.kernel.org/en/users/Drivers - rt2800usb
°°°°°°°°°°°°°°°°°°
On the other side,
despite the great throughput
- 0bda:8171 Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter
& r8712u.ko / rtl8712u.bin
is the combination supports only managed i.e. Station (STA) infrastructure mode
Besides it needs some help with the suspend/resume cycle
Kernel module(r8712u) reload - suspend/resume - systemd
http://www.spinics.net/lists/linux-wireless/msg128666.html
http://wireless.kernel.org/en/users/Documentation/modes#Station_.28STA.29_infrastructure_mode
http://wireless.kernel.org/en/users/Drivers - r8712u
http://wireless.kernel.org/en/users/Drivers/rtl819x#staging_drivers - r8712u
http://wireless.kernel.org/en/users/Drivers/rtl819x#rtlwifi - rtl8192su
°°°°°°°°°°° °°°°°°°°°°°°°°°°°°° °°°°°°°°°°°°°°°°°°°°
- 0bda:8171 Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter
& rtl8192su.ko / rtl8192sufw.bin
is the combination supports master i.e. AccessPoint (AP) infrastructure mode,
and testing has proved, with the very low throughput, but still usable
RTL8188SU(rtl8192su) & rtl8192sufw-ap.bin
http://www.spinics.net/lists/linux-wireless/msg128031.html
http://goo.gl/3O3Tz4
poma
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