Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263523AbUAYBni (ORCPT ); Sat, 24 Jan 2004 20:43:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263462AbUAYBni (ORCPT ); Sat, 24 Jan 2004 20:43:38 -0500 Received: from [130.57.169.10] ([130.57.169.10]:57730 "EHLO peabody.ximian.com") by vger.kernel.org with ESMTP id S263523AbUAYBng (ORCPT ); Sat, 24 Jan 2004 20:43:36 -0500 Subject: Re: 2.6.1 dual xeon From: Robert Love To: Wakko Warner Cc: linux-kernel@vger.kernel.org In-Reply-To: <20040124203646.A8709@animx.eu.org> References: <20040124203646.A8709@animx.eu.org> Content-Type: text/plain Message-Id: <1074995006.5246.1.camel@localhost> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.5.2 (1.5.2-2) Date: Sat, 24 Jan 2004 20:43:26 -0500 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 730 Lines: 23 On Sat, 2004-01-24 at 20:36 -0500, Wakko Warner wrote: > I recently aquired a dual xeon system. HT is enabled which shows up as 4 > cpus. I noticed that all interrupts are on CPU0. Can anyone tell me why > this is? The APIC needs to be programmed to deliver interrupts to certain processors. In 2.6, this is done in user-space via a program called irqbalance: http://people.redhat.com/arjanv/irqbalance/ If you run Red Hat, it is in the "kernel-utils" package. Robert Love - 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/