Return-path: Received: from nm30.bullet.mail.bf1.yahoo.com ([98.139.212.189]:22257 "HELO nm30.bullet.mail.bf1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1757913Ab1FVNln convert rfc822-to-8bit (ORCPT ); Wed, 22 Jun 2011 09:41:43 -0400 References: Message-ID: <1308750102.64154.YahooMailRC@web161214.mail.bf1.yahoo.com> (sfid-20110622_154146_913504_76736765) Date: Wed, 22 Jun 2011 06:41:42 -0700 (PDT) From: Joerg Pommnitz Subject: Re: Performance regression between Madwifi/net80211 and ath5k/mac80211 To: Adrian Chadd Cc: linux-wireless@vger.kernel.org, ath5k-devel@lists.ath5k.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: Adrian, thanks for taking an interest. Today I built the current Madwifi driver for Fedora Kernel 2.6.38.8-32.fc15.i686. The ath5k problem seems to be at the tx side. If I run the iperf server on the ath5k node and the iperf client at the madwifi node (identical hardware config), I consistently get a significant speedup compared to ath5k-ath5k. The only difference is, which module is blacklisted. I have experimented with the RTS and fragmentation threshold setting without success. Now I'm somewhat lost. The problem is either ath5k or mac80211. -- Regards Joerg ----- Orifinal Mail ---- > Von: Adrian Chadd > An: jpo > CC: linux-wireless@vger.kernel.org > Gesendet: Mittwoch, den 22. Juni 2011, 4:17:05 Uhr > Betreff: Re: Performance regression between Madwifi/net80211 and ath5k/mac80211 > > Have you eliminated the kernel version as being the problem? > > > Adrian