On 10/05/2013 02:52 PM, Alan Stern wrote:
On Sat, 5 Oct 2013, Larry Finger wrote:
I do however have something fishy to report, but this is probably an
off-topic for linux-usb mailing list so I'll just mention it here
briefly for completeness. Fist, I've compared the speed of the
rtl8192cu vs 8192cu in 3.4 kernel. The latter one is the Realtek's
driver. I've did many download tests of the same file and it turns out
8192cu is 1.5 times faster. Things haven't improved since then. The
3.12-rc1 rtl8192cu shows the same performance as in 3.4. In addition
with 3.12-rc1 I get some strange messages in the dmesg [1].
You may want to bring this to the attention of the wireless
maintainers.
Actually he has. From the logged messages, he must have loaded the driver with
extra debugging enabled. (debug=2)
As for the performance, he appears to be complaining that the Linux version
performs better than the vendor one.
The other way around. rtl8192cu is the driver in the kernel, and
8192cu is RealTek's driver. Arokux said that 8192cu is faster. (If
you carefully parse what he wrote, you'll see it says that he did the
comparison using the 3.4 kernel, not that 8192cu is in the 3.4 kernel.)
Yes, I did misinterpret that. In fact, I have done a lot of work recently in
improving the automatic gain setting code in rtl8192cu, but none of that is in
the kernel yet.
Larry
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