From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: Multiqueue and virtualization WAS(Re: [PATCH 3/3] NET: [SCHED] Qdisc changes and sch_rr added for multiqueue Date: Fri, 29 Jun 2007 09:16:34 -0700 Message-ID: <46853062.9090009@candelatech.com> References: <46840AF5.4020209@trash.net> <20070628.212032.108743475.davem@davemloft.net> <1183117415.5156.61.camel@localhost> <4684F41B.9080309@trash.net> <1183121670.5188.16.camel@localhost> <46850450.6040608@trash.net> <46852632.5050707@candelatech.com> <46852C20.8000501@trash.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: hadi@cyberus.ca, David Miller , peter.p.waskiewicz.jr@intel.com, netdev@vger.kernel.org, jeff@garzik.org, auke-jan.h.kok@intel.com To: Patrick McHardy Return-path: Received: from ns2.lanforge.com ([66.165.47.211]:54309 "EHLO ns2.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758920AbXF2QQk (ORCPT ); Fri, 29 Jun 2007 12:16:40 -0400 In-Reply-To: <46852C20.8000501@trash.net> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Patrick McHardy wrote: > Ben Greear wrote: > >> Could someone give a quick example of when I am wrong and promisc mode >> would allow >> a NIC to receive a significant number of packets not really destined for >> it? >> > > > In a switched environment it won't have a big effect, I agree. > It might help avoid receiving unwanted multicast traffic, which > could be more significant than unicast. > > Anyways, why be wasteful when it can be avoided .. :) > Ok, I had forgotten about multicast, thanks for the reminder! -- Ben Greear Candela Technologies Inc http://www.candelatech.com