From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030190AbVI1FPU (ORCPT ); Wed, 28 Sep 2005 01:15:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030193AbVI1FPT (ORCPT ); Wed, 28 Sep 2005 01:15:19 -0400 Received: from illhyd-static-203.197.252.75.vsnl.net.in ([203.197.252.75]:29891 "EHLO lexus.moschip.com") by vger.kernel.org with ESMTP id S1030190AbVI1FPS (ORCPT ); Wed, 28 Sep 2005 01:15:18 -0400 From: "Eshwar" To: , Subject: TCP Network performance degade from 2.4.18 to 2.6.10 Date: Wed, 28 Sep 2005 10:42:22 +0530 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.5510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Thread-Index: AcWR5JUZvpGxjSdlT7qfVw0dSJ2DbAyBLgKg In-Reply-To: <20050726130329.GA3215@ucw.cz> Message-ID: X-OriginalArrivalTime: 28 Sep 2005 05:14:47.0593 (UTC) FILETIME=[8B8CF990:01C5C3EB] X-TM-AS-Product-Ver: SMEX-7.0.0.1345-3.5.1048-13987.000 X-TM-AS-Result: No-0.200000-4.000000-31 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org HI all, I observed there is huge network performance drop from linux 2.4 to 2.6 with the same setup (No hardware changes..). The results are taken in PIV processor with D-Link network card... with iperf ... Can some body help me why such a huge difference... in TCP stream... In linux 2.4 (Redhat 9) DLink TCP UDP Tx 94.3Mbps Tx 95 Mbps Rx 94.2 Mbps Rx 95 Mbps In linux 2.6.10 (Fedora Core 4) DLink TCP UDP Tx 64.3 Mbps Tx 87 Mbps Rx 88.1 Mbps Rx 95 Mbps Thanks & Regards Eshwar