From mboxrd@z Thu Jan 1 00:00:00 1970 From: jamal Subject: Re: Multiqueue and virtualization WAS(Re: [PATCH 3/3] NET: [SCHED] Qdisc changes and sch_rr added for multiqueue Date: Tue, 03 Jul 2007 22:20:11 -0400 Message-ID: <1183515611.5174.34.camel@localhost> References: <1183215164.5165.13.camel@localhost> <20070630.133357.77057070.davem@davemloft.net> <1183466553.5159.51.camel@localhost> <20070703.142431.49854676.davem@davemloft.net> Reply-To: hadi@cyberus.ca Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: kaber@trash.net, peter.p.waskiewicz.jr@intel.com, netdev@vger.kernel.org, jeff@garzik.org, auke-jan.h.kok@intel.com To: David Miller Return-path: Received: from wx-out-0506.google.com ([66.249.82.229]:37136 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752910AbXGDCUQ (ORCPT ); Tue, 3 Jul 2007 22:20:16 -0400 Received: by wx-out-0506.google.com with SMTP id h31so1962053wxd for ; Tue, 03 Jul 2007 19:20:16 -0700 (PDT) In-Reply-To: <20070703.142431.49854676.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Tue, 2007-03-07 at 14:24 -0700, David Miller wrote: [.. some useful stuff here deleted ..] > That's why you have to copy into a purpose-built set of memory > that is composed of pages that _ONLY_ contain TX packet buffers > and nothing else. > > The cost of going through the switch is too high, and the copies are > necessary, so concentrate on allowing me to map the guest ports to the > egress queues. Anything else is a waste of discussion time, I've been > pouring over these issues endlessly for weeks, so if I'm saying doing > copies and avoiding the switch is necessary I do in fact mean it. :-) ok, i get it Dave ;-> Thanks for your patience, that was useful. Now that is clear for me, I will go back and look at your original email and try to get back on track to what you really asked ;-> cheers, jamal