From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: NIU driver: Sun x8 Express Quad Gigabit Ethernet Adapter Date: Thu, 13 Nov 2008 14:15:13 -0800 (PST) Message-ID: <20081113.141513.116537651.davem@davemloft.net> References: <20081112.035240.226243372.davem@davemloft.net> <20081112.041143.11487260.davem@davemloft.net> <1226572171.6834.87.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: jdb@comx.dk Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:50155 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1756639AbYKMWPN (ORCPT ); Thu, 13 Nov 2008 17:15:13 -0500 In-Reply-To: <1226572171.6834.87.camel@localhost.localdomain> Sender: netdev-owner@vger.kernel.org List-ID: From: Jesper Dangaard Brouer Date: Thu, 13 Nov 2008 11:29:31 +0100 > Although I'm not happy about the new perf numbers, as I now on a SMP > system only can route approx 290 kpps, remember I could route 319 kpps > using a single CPU nosmp kernel. That unfortunately (can be) the cost of SMP :-/ With multi-flow tests, Robert Olsson is getting 4.2 mpps rates with NIU and pktgen. That's what this card is designed for, good multi-flow workload performance, rather than striving for maximum single-flow performance. > (even more anyoing is that oprofile is broken) Yes, people on lkml are trying to figure out what is causing that regression on x86.