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[Aaron Kelley <aaronkelley@xxxxxxxxxxx>]

I grabbed and installed the new(ish?) version of the kernel, 2.6.27-11,
from intrepid-proposed (along with the related packages).  This seems to
have improved the situation for me.  (Previously, using ath9k, I got
terrible performance on a 802.11n network but now I am able to achieve
transfers over 1 MB/sec on the LAN.)  I will continue testing to see if
there are any problems, but even if it is not fixed, it seems for the
moment to be improved enough to be usable.

Have you tried with 2.6.27-11?

-- 
ath9k performances are unacceptable
https://bugs.launchpad.net/bugs/297965
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Support, which is the registrant for Mactel Support.

Status in The Linux Kernel: Fix Released
Status in Mactel Support: New
Status in “linux” source package in Ubuntu: Incomplete

Bug description:
Tested with a Macbook Pro 2G (late 2006, Core 2 Duo + Atheros AR5008) and Intrepid.

I'm the lucky guy with a pretty good internet bandwith, around 10 Mb/s.

With Intrepid, the wifi works "out of the box" thanks to the ath9k driver, unfortunately, the price is poor performances, my connection speed can't get more than 1 Mb/s (instead of 10).

This bug report is not based on the NetworkManager reported speed, but based on some internet ADSL speed test web sites.

The last time I did the test with the following web site : http://www.degrouptest.com/test-debit.php, the reported performances were :
- Hardy + madwifi ng 20080301 -> 7700 kb/s
- Intrepid + ath9k -> 935 kb/s

I made this test with several other web sites at different times, and same result. Anyone can easily understand this is not acceptable.

I also did a real test case : watch the TV through the ADSL connection, with the Hardy configuration, no problem, with Intrepid it is just not possible.

I'm sorry because I won't be able to perform further tests, I need my Internet connection and as I couldn't be able to find a working fix, I downgraded my computer to Hardy...and I'm waiting for some progresses in Jaunty.

But I can answer questions.