Return-path: Received: from mail-ew0-f20.google.com ([209.85.219.20]:44592 "EHLO mail-ew0-f20.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751308AbZAUSWV (ORCPT ); Wed, 21 Jan 2009 13:22:21 -0500 Received: by ewy13 with SMTP id 13so1690903ewy.13 for ; Wed, 21 Jan 2009 10:22:15 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20090121151435.GB3643@tuxdriver.com> References: <200901140003.31693.gbburkhardt@verizon.net> <200901151734.46144.gbburkhardt@verizon.net> <200901202238.08756.gbburkhardt@verizon.net> <20090121151435.GB3643@tuxdriver.com> Date: Wed, 21 Jan 2009 19:22:14 +0100 Message-ID: <69e28c910901211022j7f9c67dfv6392ce043dcff522@mail.gmail.com> (sfid-20090121_192246_273597_7002A0E3) Subject: Re: poor performance with ath5k; reverting to ath_pci From: =?ISO-8859-1?Q?Stefanik_G=E1bor?= To: "John W. Linville" Cc: Glenn Burkhardt , Bob Copeland , Nick Kossifidis , linux-wireless@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Wed, Jan 21, 2009 at 4:14 PM, John W. Linville wrote: > On Tue, Jan 20, 2009 at 10:38:08PM -0500, Glenn Burkhardt wrote: >> On Friday 16 January 2009 10:33:13 Bob Copeland wrote: >> > On Thu, Jan 15, 2009 at 5:34 PM, Glenn Burkhardt >> > >> > wrote: >> > > ath5k_pci 0000:00:07.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18 >> > > ath5k_pci 0000:00:07.0: registered as 'phy0' >> > > phy0: Selected rate control algorithm 'pid' >> > >> > Can you change the rate control algorithm to minstrel and retry? >> >> I built a 2.6.28.1-9 kernel to get the minstrel code for ath5k. The >> kernel for Suse 11.1 is 2.6.27.7-9. But that means that more could have >> changed besides the rate control code. >> >> It looks like minstrel and pid give about the same result, a bit worse that >> the ath_pci driver right now. Performance seems to vary from day to day. >> I'll experiment some more, and switch transmission channels. I'm not getting >> the really poor performance with ath5k right now. >> >> I haven't looked yet - is there a way to switch to 'pid' rate control without >> rebuilding the kernel? > > If you configure your kernel to include multiple rate control > algorithms then you can use the 'ieee80211_default_rc_algo' module > option for mac80211. Of course, changing that only works if you > rmmod/insmod mac80211. > > John Judging from this, is it really a good idea to hide pid behind EMBEDDED? -- Vista: [V]iruses, [I]ntruders, [S]pyware, [T]rojans and [A]dware. :-)