Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755768AbXIOTM3 (ORCPT ); Sat, 15 Sep 2007 15:12:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752200AbXIOTMX (ORCPT ); Sat, 15 Sep 2007 15:12:23 -0400 Received: from minas.ics.muni.cz ([147.251.4.40]:34857 "EHLO minas.ics.muni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751829AbXIOTMW (ORCPT ); Sat, 15 Sep 2007 15:12:22 -0400 X-Greylist: delayed 696 seconds by postgrey-1.27 at vger.kernel.org; Sat, 15 Sep 2007 15:12:22 EDT Date: Sat, 15 Sep 2007 21:00:16 +0200 From: Lukas Hejtmanek To: linux-kernel@vger.kernel.org Subject: CPU usage for 10Gbps UDP transfers Message-ID: <20070915190016.GA3868@ics.muni.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-echelon: NSA, CIA, CI5, MI5, FBI, KGB, BIS, Plutonium, Bin Laden, bomb User-Agent: Mutt/1.5.16 (2007-06-11) X-Muni-Spam-TestIP: 81.31.45.161 X-Muni-Envelope-From: xhejtman@anubis.fi.muni.cz X-Muni-Envelope-To: linux-kernel@vger.kernel.org X-Muni-Virus-Test: Clean X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-3.0 (minas.ics.muni.cz [147.251.4.35]); Sat, 15 Sep 2007 21:00:43 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 538 Lines: 15 Hello, is it expected that application sending 8900bytes datagram through 10Gbps NIC utilizes CPU to 100% and similarly the receiver also utilizes CPU to 100%. Is it something wrong or this is quite OK? (The box is dual single core Opteron 2.4GHz with Myricom 10GE NIC.) -- Luk?? Hejtm?nek - 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/