Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261664AbVBSJOr (ORCPT ); Sat, 19 Feb 2005 04:14:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261697AbVBSJMa (ORCPT ); Sat, 19 Feb 2005 04:12:30 -0500 Received: from 206.175.9.210.velocitynet.com.au ([210.9.175.206]:64986 "EHLO cunningham.myip.net.au") by vger.kernel.org with ESMTP id S261664AbVBSJF5 (ORCPT ); Sat, 19 Feb 2005 04:05:57 -0500 Subject: Re: Should kirqd work on HT? From: Nigel Cunningham Reply-To: ncunningham@cyclades.com To: Jeff Garzik Cc: Linux Kernel Mailing List In-Reply-To: <4216E248.5070603@pobox.com> References: <1108794699.4098.28.camel@desktop.cunningham.myip.net.au> <4216E248.5070603@pobox.com> Content-Type: text/plain Message-Id: <1108804063.4098.35.camel@desktop.cunningham.myip.net.au> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6-1mdk Date: Sat, 19 Feb 2005 20:07:43 +1100 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1207 Lines: 41 Hi Jeff. On Sat, 2005-02-19 at 17:52, Jeff Garzik wrote: > Nigel Cunningham wrote: > What are the results of running irqbalanced? You mean the debugging output? I can reenable it and record the results if that's what you mean. >From memory though, it got to not_worth_the_effort via this code: if (tmp_loaded == -1) { /* In the case of small number of heavy interrupt sources, * loading some of the cpus too much. We use Ingo's original * approach to rotate them around. */ if (!first_attempt && imbalance >= useful_load_threshold) { rotate_irqs_among_cpus(useful_load_threshold); return; } goto not_worth_the_effort; } (arch/i386/kernel/io_apic.c:449. Regards, Nigel -- Nigel Cunningham Software Engineer, Canberra, Australia http://www.cyclades.com Ph: +61 (2) 6292 8028 Mob: +61 (417) 100 574 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/