Linux Wireless USB-Stick Question

From: Justin Piszcz
Date: Wed Aug 03 2011 - 15:54:02 EST


Hi,

Under Windows, you can achieve 10-15MiB/s..

Under Linux, even with 150mbps USB wireless adapters, the max never appears to go above > 3-4MiB/s, to work around this, order more USB-wifi ticks and run them in parallel far away from each other with USB
extenders:

box1:
-------------
wlan0 IEEE 802.11bg ESSID:"hidden"
Bit Rate=54 Mb/s Tx-Power=20 dBm
wlan1 IEEE 802.11bgn ESSID:"hidden"
Bit Rate=58.5 Mb/s Tx-Power=20 dBm
wlan2 IEEE 802.11bgn ESSID:"hidden"
Bit Rate=39 Mb/s Tx-Power=20 dBm

box2:
-------------
wlan0 IEEE 802.11bgn ESSID:"hidden"
Bit Rate=58.5 Mb/s Tx-Power=20 dBm
wlan1 IEEE 802.11bgn ESSID:"hidden"
Bit Rate=52 Mb/s Tx-Power=20 dBm
wlan2 IEEE 802.11bgn ESSID:"hidden"
Bit Rate=52 Mb/s Tx-Power=20 dBm

But I was curious if anyone had achieved > 10 MiB/s with any wireless adapter with Linux?

Also, those native Linux USB adapters (carl) work good, so far.
With the patch provided earlier for the rt2800usb driver, it is no longer crashing under 3.0 so I put two of them on a single box plus a carl based one, now I get better I/O, e.g. 4MiB/s x 6 = 24MiB/s.

Justin.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/