Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161185AbWAHLSJ (ORCPT ); Sun, 8 Jan 2006 06:18:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965013AbWAHLSJ (ORCPT ); Sun, 8 Jan 2006 06:18:09 -0500 Received: from relay02.mail-hub.dodo.com.au ([202.136.32.45]:13276 "EHLO relay02.mail-hub.dodo.com.au") by vger.kernel.org with ESMTP id S964902AbWAHLSI (ORCPT ); Sun, 8 Jan 2006 06:18:08 -0500 From: Grant Coady To: be-news06@lina.inka.de (Bernd Eckenfels) Cc: linux-kernel@vger.kernel.org Subject: Re: Why is 2.4.32 four times faster than 2.6.14.6?? Date: Sun, 08 Jan 2006 22:18:03 +1100 Organization: http://bugsplatter.mine.nu/ Reply-To: gcoady@gmail.com Message-ID: References: <20060108095741.GH7142@w.ods.org> In-Reply-To: X-Mailer: Forte Agent 2.0/32.652 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 Content-Length: 1408 Lines: 39 On Sun, 08 Jan 2006 11:23:37 +0100, be-news06@lina.inka.de (Bernd Eckenfels) wrote: >Willy Tarreau wrote: >> It's rather strange that 2.6 *eats* CPU apparently doing nothing ! > >it eats it in high interrupt load. And it is caused by the pty-ssh-tcp >output, so most likely those are eepro100 interrupts. That would be true for either 2.4 or 2.6, no? Also it runs e100 driver, but... 2.4 dmesg: Intel(R) PRO/100 Network Driver - version 2.3.43-k1 Copyright (c) 2004 Intel Corporation e100: selftest OK. e100: eth0: Intel(R) PRO/100 Network Connection Hardware receive checksums enabled cpu cycle saver enabled 2.6 dmesg: [ 31.977945] e100: Intel(R) PRO/100 Network Driver, 3.4.14-k2-NAPI [ 31.978007] e100: Copyright(c) 1999-2005 Intel Corporation [ 32.002928] e100: eth0: e100_probe: addr 0xfd201000, irq 11, MAC addr 00:90:27:42:AA:77 [ 32.026992] e100: eth1: e100_probe: addr 0xfd200000, irq 12, MAC addr 00:90:27:58:32:D4 [ 32.186941] e100: eth0: e100_watchdog: link up, 100Mbps, full-duplex Are rx checksums not turned on in 2.6' e100 driver? CPU is only pentium/mmx 233 -- Thanks, Grant. http://bugsplatter.mine.nu/ - 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/