From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: Re: Fwd: [RFC v3] net: Introduce recvmmsg socket syscall Date: Wed, 16 Sep 2009 08:52:18 -0300 Message-ID: <20090916115218.GK22743@ghostprotocols.net> References: <9b2db90b0908060014r6a1763e8t1b3ee9310e012c25@mail.gmail.com> <9b2db90b0908060015v45d31060me94cf436f4a25e42@mail.gmail.com> <20090914230902.GC22743@ghostprotocols.net> <9b2db90b0909150137j16c46340o89b55af62f7b613e@mail.gmail.com> <20090915141110.GG22743@ghostprotocols.net> <9b2db90b0909151120l71498303w26cfd657c9f18092@mail.gmail.com> <20090915205207.GI22743@ghostprotocols.net> <20090916045333.GA18325@verge.net.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Arnaldo Carvalho de Melo , Nir Tzachar , Linux Networking Development Mailing List , Ziv Ayalon To: Simon Horman Return-path: Received: from mx1.redhat.com ([209.132.183.28]:53671 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755873AbZIPLwc (ORCPT ); Wed, 16 Sep 2009 07:52:32 -0400 Content-Disposition: inline In-Reply-To: <20090916045333.GA18325@verge.net.au> Sender: netdev-owner@vger.kernel.org List-ID: Em Wed, Sep 16, 2009 at 02:53:44PM +1000, Simon Horman escreveu: > On Tue, Sep 15, 2009 at 05:52:07PM -0300, Arnaldo Carvalho de Melo wrote: > > Em Tue, Sep 15, 2009 at 09:20:13PM +0300, Nir Tzachar escreveu: > > > >> Setup: > > > >> linux 2.6.29.2 with the third version of the patch, running on an > > > >> Intel Xeon X3220 2.4GHz quad core, with 4Gbyte of ram, running Ubuntu > > > >> 9.04 > > > > > > > > Which NIC? 10 Gbit/s? > > > > > > 1G. We do not care as much for throughput as we do about latency... > > > > OK, but anyway the 10 Gbit/s cards I've briefly played with all > > exhibited lower latencies than all 1 gbit/s ones, in fact I've heard > > about people moving to 10 Gbit/s not for the bw, but for the lower > > latencies :-) > > Hi Arnaldo, > > Out of curiosity, is that using a 10Gbit card with > a 10Gbit link or a 1Gbit link? Its been a while, but most details should be publicly available here: http://www.stacresearch.com/node/4211 - Arnaldo