Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:40764 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754330AbZEUQIL (ORCPT ); Thu, 21 May 2009 12:08:11 -0400 Subject: Re: [mac80211 ] Wifi Network slownes bisected From: Johannes Berg To: Alejandro Riveira =?ISO-8859-1?Q?Fern=E1ndez?= Cc: linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org In-Reply-To: <20090521173839.1f20b95d@varda> References: <20090521173839.1f20b95d@varda> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-nKeeNjl4BRvdjo5SSGK/" Date: Thu, 21 May 2009 18:08:11 +0200 Message-Id: <1242922091.4212.14.camel@johannes.local> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-nKeeNjl4BRvdjo5SSGK/ Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, 2009-05-21 at 17:38 +0200, Alejandro Riveira Fern=C3=A1ndez wrote: > I noticed that my wifi connection has slowed when stitching > from 2.6.29.1 to 2.6.29.4 (it is also slow on 30-rc6) > Also 2.6.27 (ubuntu) does not suffer it. > $ git bisect good > 64e1b00c974ddeae6a60ebb02e1c487371905cea is first bad commit > commit 64e1b00c974ddeae6a60ebb02e1c487371905cea > Author: Johannes Berg > Date: Fri Apr 24 16:05:16 2009 +0000 >=20 > mac80211: fix basic rate bitmap calculation Well ... How much did your connection slow down? It is clear that this commit might possibly slow down your connection, but not by a lot. And that's only because before we were sending with a higher rate than the AP allowed us to... If you need the higher speed then set your AP to G-only to make it include more rates in the basic rate set, that'll speed up your connection properly. That's all discounting driver bugs which may exist, of course. johannes --=-nKeeNjl4BRvdjo5SSGK/ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJKFXxnAAoJEODzc/N7+Qma8XMQAIFYa+ZzvbiKdxaicE3tHfIE yHGS6PneVC17txFW13opEAzMUHiF6d3ViwDjYYWiXjfVMOIsqiRcx5NQdSHJHWIy cum2dlh5awrd4jf60G65EEN6PQGU0XFPETdaly8NZzPj98xjcVkrOxJTkpnPeWAl brH18LokWl3U0FuxbXmBUIWXaCLsLovnH1vFaj4fH0+wz317zrLx2dHwp96Mt0WK 4ru1hRJQ0fQyaqKsvi0yeccNitTfCF/3sooC/GoQeNPozK2Pl028zQzjIsaTTmnl qoxr4+mCQ9WxmONEuTIuKKc0WeQzDv/zM61lflN4vMfxnd2QgQYx4Ogj/4Nl7vMU jalOCQH9KQf1CzGlwcPMpOsNg5uz7IlXvjgZW1BDUwiUB4ALycMeVXXy2HblDRBm sDDgacRf/q+Vy0xsMxMgWgfPXFH9K/vkgeMTtC3Q145PBfYk5HIAyQN9BMY1KuuO 5ug3j3YY1U0if6Rm/ttbEIREVZaH38FPbCrLTGkD8+eJgDLvF1cN3Brur+1V7BEb fK6/7JpS7YTLx6JU9lTAkgkhK43pTBJzv82+bHvqITG2EF+807/csMmZj7904RZ6 6ysjIUKB7Pcq3jx+DaMKdMsTkGgyHSAfWAULRxhXQ96Eou5n/0rNaPsA5iOQcGgB jmrNDKczWIb9gpJ5s0Ri =VOWE -----END PGP SIGNATURE----- --=-nKeeNjl4BRvdjo5SSGK/--