From mboxrd@z Thu Jan 1 00:00:00 1970 From: "J.Hwan Kim" Subject: Intel 82599 ixgbe driver performance Date: Wed, 10 Aug 2011 15:19:34 +0900 Message-ID: <4E4222F6.7050304@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: netdev Return-path: Received: from mail-iy0-f170.google.com ([209.85.210.170]:32802 "EHLO mail-iy0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751121Ab1HJGTh (ORCPT ); Wed, 10 Aug 2011 02:19:37 -0400 Received: by iye16 with SMTP id 16so563463iye.1 for ; Tue, 09 Aug 2011 23:19:37 -0700 (PDT) Sender: netdev-owner@vger.kernel.org List-ID: Hi, everyone I'm testing our network card which includes intel 82599 based on ixgbe driver. I wonder what is the Rx performance of i82599 without network stack only with 64Byte frames. Our driver reads the packet directly from DMA packet buffer and push to the application without passing through linux kernel stack. It seems that the intel 82599 cannot push 64B frames to DMA area in 10G. Is it right? If it is the case, what is the bottleneck of 82599? Thanks in advance. Best Regards, J.Hwan KIm