From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265163AbTFMGNu (ORCPT ); Fri, 13 Jun 2003 02:13:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265165AbTFMGNu (ORCPT ); Fri, 13 Jun 2003 02:13:50 -0400 Received: from pizda.ninka.net ([216.101.162.242]:62900 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id S265163AbTFMGNu (ORCPT ); Fri, 13 Jun 2003 02:13:50 -0400 Date: Thu, 12 Jun 2003 23:22:49 -0700 (PDT) Message-Id: <20030612.232249.104032251.davem@redhat.com> To: andrea@suse.de Cc: akpm@digeo.com, davidsen@tmr.com, haveblue@us.ibm.com, habanero@us.ibm.com, mbligh@aracnet.com, linux-kernel@vger.kernel.org Subject: Re: userspace irq balancer From: "David S. Miller" In-Reply-To: <20030527222712.GB1453@dualathlon.random> References: <20030527115314.GU3767@dualathlon.random> <20030527.150449.08322270.davem@redhat.com> <20030527222712.GB1453@dualathlon.random> X-FalunGong: Information control. X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Andrea Arcangeli Date: Wed, 28 May 2003 00:27:12 +0200 I see your point, please try with 2.4.21rc4aa1 or with this patch: http://www.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.21rc4aa1/00_ksoftirqd-max-loop-networking-1 you can put a printk in the ksoftirqd loop and tune the N until it behaves as you want. Ingo's specweb testing indicated that a value somewhere between 8 and 10 appear optimal. I've pushed this change into Andrew's -mm 2.5.x patch set.