Re: [gentoo-user] iwl4965 performance

[Florian Philipp <lists@f_philipp.fastmail.net>]

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On Mon, 2008-03-24 at 17:28 +0100, Thomas Kahle wrote:
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> Hi,
> 
> I am using the iwl4965 driver which is included in the kernel
> 2.6.25-rc6. Everything works fine (Networkmanager, WPA2, etc.) The only
> thing I experience is a very bad performance.
> I cannot get more than around 30 kb/s. Also the responses are rather
> slow. If I open some new tabs in firefox it takes up to 5 seconds before
> there is enough data to render something.
> When using wired network its much faster.
> The router is also not the source of the problem, with my old airo card
> i could get up to 200 kb/s, the macbook running gentoo gets to around
> 500kb/s.
> 
> Any ideas where to start investigation ?
> 
> Thanks
> Thomas

When I switched to iwl3945 I had problems with a very unstable
connection (just stable enough to allow wpa_supplicant to recover),
decreasing effective bandwidth a lot. Enabling every suboption except of
debugging for "Intel Wireless WiFi Link Drivers" in the kernel 
resolved it.

Does it work with kernel 2.6.24?

Maybe you could try wpa_supplicant with debugging enabled?

wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -d

or even
wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -dd

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