From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932267AbXBWMEv (ORCPT ); Fri, 23 Feb 2007 07:04:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932299AbXBWMEv (ORCPT ); Fri, 23 Feb 2007 07:04:51 -0500 Received: from mail.astral.ro ([193.230.240.11]:60124 "EHLO mail.astral.ro" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932256AbXBWMEr (ORCPT ); Fri, 23 Feb 2007 07:04:47 -0500 X-Greylist: delayed 1928 seconds by postgrey-1.27 at vger.kernel.org; Fri, 23 Feb 2007 07:04:47 EST Message-ID: <45DED0D6.1040700@astral.ro> Date: Fri, 23 Feb 2007 13:32:38 +0200 From: Imre Gergely User-Agent: Thunderbird 1.5.0.9 (X11/20070212) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: irq balancing question Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org hi i have a SMP with 2x duo-core Opteron processors, and i have an ethernet card (eth0). i want to balance the interrupts generated by the card to all 4 processors. i can do this by writing to smp_affinity, but on another machine it get's done by "default", without doing anything. is this irq balancing a feature in the chipset, or driver, or kernel ? i got the idea of the smp_affinity stuff, and i've set it to "f", but nothing happens, i mean i see only one CPU getting the interrupts. i'm using kernel 2.6.18, but tried with 2.6.19, too. thanks.