Return-path: Received: from mta-1.ms.rz.rwth-aachen.de ([134.130.7.72]:44264 "EHLO mta-1.ms.rz.rwth-aachen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751273Ab2IXWQL convert rfc822-to-8bit (ORCPT ); Mon, 24 Sep 2012 18:16:11 -0400 MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Received: from mx-out-1.rwth-aachen.de ([134.130.5.186]) by mta-1.ms.rz.RWTH-Aachen.de (Sun Java(tm) System Messaging Server 6.3-7.04 (built Sep 26 2008)) with ESMTP id <0MAV006UFJ4WL810@mta-1.ms.rz.RWTH-Aachen.de> for linux-wireless@vger.kernel.org; Mon, 24 Sep 2012 23:46:08 +0200 (CEST) Received: from pebbles.localnet ([unknown] [78.49.193.32]) by relay-auth-2.ms.rz.rwth-aachen.de (Sun Java(tm) System Messaging Server 7.0-3.01 64bit (built Dec 9 2008)) with ESMTPA id <0MAV00EUAJ4WGV40@relay-auth-2.ms.rz.rwth-aachen.de> for linux-wireless@vger.kernel.org; Mon, 24 Sep 2012 23:46:08 +0200 (CEST) From: Stefan =?ISO-8859-1?Q?Br=FCns?= To: linux-wireless@vger.kernel.org Subject: Throughput regression in b43 caused by spurious avoidance implementation Date: Mon, 24 Sep 2012 23:46:05 +0200 Message-id: <1698401.RCfH1UvLZM@pebbles> (sfid-20120925_001615_466398_7EB90ECF) Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi everyone, as I have been plagued by the performance regression in b43 between linux 3.2 and 3.3, I have bisected it: git bisect good 49d55cef5b1925a5c1efb6aaddaa40fc7c693335 is the first bad commit commit 49d55cef5b1925a5c1efb6aaddaa40fc7c693335 Author: Rafał Miłecki Date: Sun Dec 11 13:16:51 2011 +0100 b43: N-PHY: implement spurious tone avoidance Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville :040000 040000 f6177f4c33e1d382a430ad83db1e4b3f9dd66dfd 1b161ac9a16a481f259606edda5039c2be5147f4 M drivers lspci -v{n,}: 08:00.0 0280: 14e4:432b (rev 01) Subsystem: 1028:000d Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at f0600000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [58] Vendor Specific Information: Len=78 Capabilities: [e8] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [d0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel Capabilities: [160] Device Serial Number 7e-d8-e5-xx-xx-xx-xx Capabilities: [16c] Power Budgeting Kernel driver in use: b43-pci-bridge 08:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01) Subsystem: Dell Wireless 1510 Wireless-N WLAN Mini-Card Used channel is channel 13, 2.472GHz, AP is AVM 7112, "G-only" mode. Regards, Stefan -- Stefan Brüns / Bergstraße 21 / 52062 Aachen phone: +49 241 53809034 mobile: +49 151 50412019