From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261928AbTJSREy (ORCPT ); Sun, 19 Oct 2003 13:04:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261906AbTJSREx (ORCPT ); Sun, 19 Oct 2003 13:04:53 -0400 Received: from natsmtp00.rzone.de ([81.169.145.165]:30206 "EHLO natsmtp00.webmailer.de") by vger.kernel.org with ESMTP id S261928AbTJSREu (ORCPT ); Sun, 19 Oct 2003 13:04:50 -0400 Message-ID: <3F92C423.8050403@softhome.net> Date: Sun, 19 Oct 2003 19:04:35 +0200 From: "Ihar 'Philips' Filipau" Organization: Home Sweet Home User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20030927 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Ihar 'Philips' Filipau" CC: Linux Kernel Mailing List , Wichert Akkerman Subject: Re: [2.6 patch] add a config option for -Os compilation References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Ihar 'Philips' Filipau wrote: > Wichert Akkerman wrote: > >> Previously Ihar 'Philips' Filipau wrote: >> >>> The goal of kernel is to provide framework for applications to the >>> job well. >> >> >> I doubt anyone using linux for routing would agree with you. >> > > This is different matter. > This is IO bound task - and I'm not sure how -Os will perform there. > But still this depends on routing protocols and their requirements. > > In any way in this case bottleneck is PCI bus (DMA over PCI from NIC > to main memory and back). I bet software will show up in timing tests as > taking <10% of whole time. > Sorry I mean't calculations and alike will take <10%. Sure in case of software router 90% of time will be spent in CPU. -- Ihar 'Philips' Filipau / with best regards from Saarbruecken. -- "... and for $64000 question, could you get yourself vaguely familiar with the notion of on-topic posting?" -- Al Viro @ LKML