From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932249Ab0KOLbS (ORCPT ); Mon, 15 Nov 2010 06:31:18 -0500 Received: from mail-ww0-f44.google.com ([74.125.82.44]:61184 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752723Ab0KOLbR (ORCPT ); Mon, 15 Nov 2010 06:31:17 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; b=EaL/JmAAmCat1QsKTucC/oBuZ9pE+GZ4h0xyf3E+CESLicLkeBhagfE0yq3G3Bd5eZ 31rgMNYFxttYidFEJs3iez456+IogNJMvoVM7LFdXSINjwsYEAZN55jectmIK3JkL06k qpD/Adoyc8lxwLAOcxLaKxIwUh1RK6WEMRjjY= Subject: Re: Kernel rwlock design, Multicore and IGMP From: Eric Dumazet To: Cypher Wu Cc: Chris Metcalf , =?ISO-8859-1?Q?Am=E9rico?= Wang , linux-kernel@vger.kernel.org, netdev In-Reply-To: References: <1289489007.17691.1310.camel@edumazet-laptop> <4CDF1945.8090101@tilera.com> Content-Type: text/plain; charset="UTF-8" Date: Mon, 15 Nov 2010 12:31:12 +0100 Message-ID: <1289820672.2607.10.camel@edumazet-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le lundi 15 novembre 2010 à 19:18 +0800, Cypher Wu a écrit : > In that post I want to confirm another thing: if we join/leave on > different cores that every call will start the timer for IGMP message > using the same in_dev->mc_list, could that be optimized? > Which timer exactly ? Is it a real scalability problem ? I believe RTNL would be the blocking point actually...