From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1Hy7un-0008SW-94 for user-mode-linux-devel@lists.sourceforge.net; Tue, 12 Jun 2007 08:04:14 -0700 Received: from saraswathi.solana.com ([198.99.130.12]) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1Hy7ul-0002s9-OC for user-mode-linux-devel@lists.sourceforge.net; Tue, 12 Jun 2007 08:04:13 -0700 Date: Tue, 12 Jun 2007 11:04:05 -0400 From: Jeff Dike Message-ID: <20070612150405.GA7102@c2.user-mode-linux.org> References: <010701c7ace0$f98b0d80$d8c8a8c0@angel4> Mime-Version: 1.0 Content-Disposition: inline In-Reply-To: <010701c7ace0$f98b0d80$d8c8a8c0@angel4> Subject: Re: [uml-devel] UDP vs. TCP performance over UML List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-bounces@lists.sourceforge.net Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: George Hadjichristofi Cc: 'shruti singhal' , user-mode-linux-devel@lists.sourceforge.net On Tue, Jun 12, 2007 at 07:01:05AM -0400, George Hadjichristofi wrote: > When we use TCP the throughput is 100 Mbps from the UML instance of node A > to the host kernel of node B and 100 Mbps from the host kernel of node A to > the host kernel of node B. However, when we use UDP the throughput is only > 26 Mbps from the UML instance on node A to the host kernel of node B, but > 100 Mbps from the host kernel of node A to the host kernel of node B. We > also notice that a large number of packets were dropped in the case of UDP > over UML. At what interface are the packets being dropped? Jeff -- Work email - jdike at linux dot intel dot com ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel