From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Arno J. Klaassen" Subject: Re: [Bugme-new] [Bug 11752] New: Extremely low netperf UDP_RR throughput for nvidia MCP65 Date: 11 Dec 2008 21:53:36 +0100 Message-ID: References: <20081016134920.1492cdcc.akpm@linux-foundation.org> <48F7AD1A.7050309@hp.com> <48F8FE18.6060005@hp.com> <48FCC2C1.5030108@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Andrew Morton , netdev@vger.kernel.org, bugme-daemon@bugzilla.kernel.org, Ayaz Abdulla To: Rick Jones Return-path: Received: from shiva.jussieu.fr ([134.157.0.129]:64988 "EHLO shiva.jussieu.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757365AbYLKWFw (ORCPT ); Thu, 11 Dec 2008 17:05:52 -0500 In-Reply-To: <48FCC2C1.5030108@hp.com> Sender: netdev-owner@vger.kernel.org List-ID: Hello, Rick Jones writes: > >>Clearly something is fubar with the rx side (well duh :). The next > >>set of stats I'd try to look at would be ethtool stats for the > >>interface, eg ethtool -S eth0 and see if it shows someting more > >>specific for the "RX-ERR" shown by netstat -I eth0. > > OK, here it is (rx_errors_total: 10049, rx_crc_errors: 10049) : > > Well, that seems to confirm that it is CRC errors. [ .. stuff deleted .. ] well, just a quick 'knock knock' in case any of you has something new on this I can live with 100Mbps, but would be glad to help further to get it work at 1gbps (pavillon dv6700). Looks like a silicon bug to me, but alas; please beep me if I can test something. Best regards, Arno