From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andre Puschmann Subject: Re: Networking latency issue on 2.6.33.7-rt29 kernel Date: Wed, 01 Dec 2010 09:27:24 +0100 Message-ID: References: <0016e65a0784be92790495bd73d5@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit To: linux-rt-users@vger.kernel.org Return-path: Received: from lo.gmane.org ([80.91.229.12]:51492 "EHLO lo.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752716Ab0LAI1p (ORCPT ); Wed, 1 Dec 2010 03:27:45 -0500 Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1PNi2M-0001an-Ry for linux-rt-users@vger.kernel.org; Wed, 01 Dec 2010 09:27:38 +0100 Received: from ih5.theoinf.tu-ilmenau.de ([141.24.203.5]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 01 Dec 2010 09:27:38 +0100 Received: from andre.puschmann by ih5.theoinf.tu-ilmenau.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 01 Dec 2010 09:27:38 +0100 In-Reply-To: Sender: linux-rt-users-owner@vger.kernel.org List-ID: Hi, On 11/24/2010 02:35 PM, Jean-Michel Hautbois wrote: > For those who may be interested, CONFIG_TINY_RCU changes the behaviour > (it was CONFIG_TREE_PREEMPT_RCU) : > http://picasaweb.google.com/lh/photo/DmKJyIv04fvnN_y0wR0_9ZMU3g7ObZTPqzWaaCIpUqI?feat=directlink In init/Kconfig, CONFIG_TINY_RCU is configured to depend on "!SMP && !PREEMPT_RT". Did you just remove the !PREEMPT_RT dependency then? If so, I am afraid this may cause side effects. Regards, Andre