From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from nbd.name ([88.198.39.176]:46459 "EHLO ds10.mine.nu" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752022AbYGZOtf (ORCPT ); Sat, 26 Jul 2008 10:49:35 -0400 Message-ID: <488B3969.4050405@openwrt.org> (sfid-20080726_164938_618398_B91C3452) Date: Sat, 26 Jul 2008 16:49:13 +0200 From: Felix Fietkau MIME-Version: 1.0 To: =?ISO-8859-1?Q?C=E9dric_Auger?= CC: linux-wireless@vger.kernel.org Subject: Re: iwl3945 slow for downloading References: <20080726161140.59041730@grisbi.org> In-Reply-To: <20080726161140.59041730@grisbi.org> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: C=E9dric Auger wrote: > hello > i've a problem for iwl3945 and didn't find on google something about > that. i have the kernel 2.6.26 and use the kernel's driver. when i wa= s > with the ipw3945, i could download with a speed of at least 600k/s, a= nd > sometimes more. > it's some time i changed for iwl3945 and didn't see some difference > exept it works better in several ways, but some times ago, i noticed > that dowloading big images was slow. > i checked to transfer a file between 2 computer by wifi, and the > download is limited to about 130-140k/s. when i plug a cable, i go > directly to 900kb/s. I don't know if it helps with debugging this issue, but I've seen the s= ame on a laptop from a friend of mine (same card). After some searching I found that setting the AP to g-only mode instead= of b+g mixed made it work at decent speeds. Another symptom of this slowdo= wn is that there is typically an unnaturally high number of retransmissions o= n the air, which eats up a lot of airtime. I've spent some time looking through the code to find the reason for th= is but couldn't find anything yet (maybe somebody from Intel could help). - Felix -- To unsubscribe from this list: send the line "unsubscribe linux-wireles= s" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html