Return-path: Received: from mail-oi0-f68.google.com ([209.85.218.68]:36440 "EHLO mail-oi0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750944AbdHRLuj (ORCPT ); Fri, 18 Aug 2017 07:50:39 -0400 Received: by mail-oi0-f68.google.com with SMTP id b130so9088974oii.3 for ; Fri, 18 Aug 2017 04:50:39 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <1496299074.13131.3.camel@embedded.rocks> References: <20170524073326.3a16481b@Vantage> <1496299074.13131.3.camel@embedded.rocks> From: Fabio Estevam Date: Fri, 18 Aug 2017 08:50:38 -0300 Message-ID: (sfid-20170818_135043_210198_CB13DB31) Subject: Re: brcmfmac experiment for a specific use case - tx throughput maximization for slow CPU with glomming To: =?UTF-8?B?SsO2cmcgS3JhdXNl?= Cc: =?UTF-8?B?SsOpcsO0bWUgQ2FycmV0ZXJv?= , Franky Lin , Wright Feng , Arend van Spriel , linux-wireless Content-Type: text/plain; charset="UTF-8" Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi J=C3=B6rg, On Thu, Jun 1, 2017 at 3:37 AM, J=C3=B6rg Krause wrote: > I'm experiencing low throughput with a BCM43362 wifi chip attached via > SDIO to an i.MX28 [1,2]. After disabling some Kernel debug features I'm > getting now a TCP throughput of 12.5 Mbps for the wifi interface, which > is still below the throughput I get for the Cubietruck. Does it help if you disable CONFIG_PROVE_LOCKING? --- a/arch/arm/configs/mxs_defconfig +++ b/arch/arm/configs/mxs_defconfig @@ -175,7 +175,6 @@ CONFIG_MAGIC_SYSRQ=3Dy CONFIG_DEBUG_KERNEL=3Dy CONFIG_LOCKUP_DETECTOR=3Dy CONFIG_TIMER_STATS=3Dy -CONFIG_PROVE_LOCKING=3Dy CONFIG_BLK_DEV_IO_TRACE=3Dy CONFIG_STRICT_DEVMEM=3Dy CONFIG_DEBUG_USER=3Dy