From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [PATCH net-next 2/2] openvswitch: Use zerocopy if applicable when performing the upcall Date: Sat, 25 May 2013 07:39:32 -0700 Message-ID: <1369492772.3301.468.camel@edumazet-glaptop> References: <064a09fffe48540b66a3ee503860ed9e8a1eb5f1.1369406826.git.tgraf@suug.ch> <1369421900.3301.431.camel@edumazet-glaptop> <1369432621.3301.445.camel@edumazet-glaptop> <20130525070222.GB30252@casper.infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Jesse Gross , netdev , "dev@openvswitch.org" To: Thomas Graf Return-path: Received: from mail-pb0-f49.google.com ([209.85.160.49]:65181 "EHLO mail-pb0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756485Ab3EYOje (ORCPT ); Sat, 25 May 2013 10:39:34 -0400 Received: by mail-pb0-f49.google.com with SMTP id rp8so5212415pbb.8 for ; Sat, 25 May 2013 07:39:33 -0700 (PDT) In-Reply-To: <20130525070222.GB30252@casper.infradead.org> Sender: netdev-owner@vger.kernel.org List-ID: On Sat, 2013-05-25 at 08:02 +0100, Thomas Graf wrote: > I ran TCP_CRR to verify the SYN/ACK use case and I did not > observe a difference. If you have any specific test in mind > I will be glad to run that before posting the 2nd revision. I guess you should test with rx checksum disabled as well, Jesse seemed to be concerned about that. ethtool -K eth0 rx off