From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161429AbWBUIpg (ORCPT ); Tue, 21 Feb 2006 03:45:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161435AbWBUIpg (ORCPT ); Tue, 21 Feb 2006 03:45:36 -0500 Received: from mail.astral.ro ([193.230.240.11]:62877 "EHLO mail.astral.ro") by vger.kernel.org with ESMTP id S1161429AbWBUIpg (ORCPT ); Tue, 21 Feb 2006 03:45:36 -0500 Message-ID: <43FAD32E.3080608@astral.ro> Date: Tue, 21 Feb 2006 10:45:34 +0200 From: Imre Gergely Organization: Astral Telecom SA User-Agent: Thunderbird 1.5 (X11/20051025) MIME-Version: 1.0 To: Arjan van de Ven CC: linux-kernel@vger.kernel.org Subject: Re: irq balance problems? References: <43FAC5AA.1030205@astral.ro> <1140508579.3082.12.camel@laptopd505.fenrus.org> <43FAC963.40908@astral.ro> <1140509881.3082.18.camel@laptopd505.fenrus.org> In-Reply-To: <1140509881.3082.18.camel@laptopd505.fenrus.org> X-Enigmail-Version: 0.93.0.0 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 Arjan van de Ven wrote: > On Tue, 2006-02-21 at 10:03 +0200, Imre Gergely wrote: >> Arjan van de Ven wrote: >>>> and irqbalance is not running, why aren't the interrupts coming from eth0 >>>> balanced between the two processors? at least that's what i understood from the >>>> examples in Documentation/IRQ-affinity.txt. are there any other settings/kernel >>>> parameters/compile option one has to set? >>> it'll depend on the chipset. Some round-robin, some don't. >>> For performance it's better to not round-robin. >> is there a way to see for sure? or this behaviour is proof enough that it >> doesn't do round-robin? > > it's pretty much proof to me already yes ;) > > (but why do you want round-robin? it's the worst setting for > performance..... ) on one of the ethernet cards is much traffic, and there is htb (with many classes and filters) used. because of this, one CPU is always on 95-100%, the other is barely used. i wanted to see if it would improve performance if it did balancing between the CPUs.